Patents by Inventor Michael Przemyslaw Szczepkowski

Michael Przemyslaw Szczepkowski has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11408697
    Abstract: A firearm magazine extension article generally comprises; an extension spring stop that couples to a distal end of an OEM firearm magazine, and an extension body that couples to the extension spring stop. The extension body further comprises locking tabs receivable by the extension spring stop to secure it and the whole of the article to the OEM firearm magazine. To deter any lateral movement by the article and to further secure the article, the extension spring stop comprises a first spring plate receiving orifice to receive a spring plate tab, and the extension body comprises a second spring plate receiving orifice to also receive the spring plate tab.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 9, 2022
    Assignee: XTECH TACTICAL, LLC
    Inventors: Michael Przemyslaw Szczepkowski, David Joel Spykerman
  • Publication number: 20170321979
    Abstract: A firearm magazine extension article generally comprises; an extension spring stop that couples to a distal end of an OEM firearm magazine, and an extension body that couples to the extension spring stop. The extension body further comprises locking tabs receivable by the extension spring stop to secure it and the whole of the article to the OEM firearm magazine. To deter any lateral movement by the article and to further secure the article, the extension spring stop comprises a first spring plate receiving orifice to receive a spring plate tab, and the extension body comprises a second spring plate receiving orifice to also receive the spring plate tab.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 9, 2017
    Inventors: Michael Przemyslaw Szczepkowski, David Joel Spykerman
  • Patent number: 9383162
    Abstract: An adjustable firearm generally comprises a firearm body comprising an adjustable handgrip to vary a handgrip angle with respect to a barrel of the firearm, wherein the adjustable handgrip comprises a substrate and an overlay. In an embodiment, the substrate affixes to the firearm body and the overlay couples to the substrate at one of at least multiple angles with respect to a firearm barrel. In another embodiment, a firearm body comprises an integrated substrate configured to receive an overlay, wherein the overlay couples to the substrate at one of at least multiple angles with respect to a firearm barrel. Among various representative embodiments, the substrate or overlay may comprise a fixed geometry and the substrate or overlay may comprise an adjustment mechanism to couple one to the other at various positions. The present invention may comprise a method for manufacturing, packaging, marketing, distributing, and/or selling the adjustable firearm.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: July 5, 2016
    Inventors: David Joel Spykerman, Jeremy Deadman, Michael Przemyslaw Szczepkowski
  • Publication number: 20160003576
    Abstract: An adjustable firearm generally comprises a firearm body comprising an adjustable handgrip to vary a handgrip angle with respect to a barrel of the firearm, wherein the adjustable handgrip comprises a substrate and an overlay. In an embodiment, the substrate affixes to the firearm body and the overlay couples to the substrate at one of at least multiple angles with respect to a firearm barrel. In another embodiment, a firearm body comprises an integrated substrate configured to receive an overlay, wherein the overlay couples to the substrate at one of at least multiple angles with respect to a firearm barrel. Among various representative embodiments, the substrate or overlay may comprise a fixed geometry and the substrate or overlay may comprise an adjustment mechanism to couple one to the other at various positions. The present invention may comprise a method for manufacturing, packaging, marketing, distributing, and/or selling the adjustable firearm.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 7, 2016
    Inventors: David Joel Spykerman, Jeremy Deadman, Michael Przemyslaw Szczepkowski
  • Publication number: 20160003568
    Abstract: A quick loading firearm magazine generally comprises; a magazine casing, a chambering mechanism, and a chambering mechanism actuator. The magazine casing is configured to receive a plurality of firearm cartridges and the casing is dimensioned to couple to a magazine well of a firearm. The chambering mechanism, such as a spring, provides a sufficient force to loaded firearm cartridges to assure the cartridges are chamberable within the firearm, and may further comprise a spring follower coupled to the spring to further assist guiding the loaded cartridges. The chambering mechanism actuator allows a user to manually actuate the chambering mechanism and may comprise a casing slide that suitably engages the casing, and is configured to; slide along the firearm magazine body, engage the spring follower through a longitudinal casing slot, and maintain the spring follower in a substantially normal position relative to the casing sidewall.
    Type: Application
    Filed: April 30, 2014
    Publication date: January 7, 2016
    Applicant: XTECH, LLC
    Inventors: David Joel Spykerman, Jeremy Deadman, Michael Przemyslaw Szczepkowski
  • Publication number: 20080231099
    Abstract: A seat with an adjustable thigh support assembly includes a seat bottom with a rearward portion and a forward edge. The rearward portion is positioned to receive the buttocks of a person with the thighs extending beyond the forward edge. A thigh support has a rear edge and a forward edge with the forward edge extending generally horizontally beyond the forward edge of the seat bottom. The assembly further includes adjustable apparatus affixing the thigh support to the seat bottom for movement between a retracted position in which the rear edge of the thigh support extends below the forward edge of the seat bottom and an extended position in which the rear edge of the thigh support is in substantial juxtaposition with the forward edge of the seat bottom.
    Type: Application
    Filed: March 21, 2008
    Publication date: September 25, 2008
    Inventors: Michael Przemyslaw Szczepkowski, David Joel Spykerman