Patents by Inventor Lincoln B. Spaulding

Lincoln B. Spaulding 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).

  • Two way mailer
    Patent number: 4899926
    Abstract: A two way mailer is formed from a single blank of sheet material, and has separably interconnected forwarding and return envelopes sharing a common rear panel. The return envelope is separable from the forwarding envelope along perforated lines located exclusively or substantially exclusively outside of the front panel of the forwarding envelope. Vulnerable segments of the perforated lines are securely overlapped by the front closure flap of the forwarding envelope.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: February 13, 1990
    Assignee: Sheppard Envelope Company
    Inventor: Lincoln B. Spaulding