Patents by Inventor Carl Prentice

Carl Prentice 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).

  • Marine engine winterizing system
    Patent number: 6510862
    Abstract: This is a system and procedure that uses either a hand pump system or an electric pump system to drain fresh water or sea water out of a marine engine, and then uses either the hand pump system or the electric pump system to install fresh water or other liquid chemicals into the marine engine, and also uses either the hand pump system or the electric pump system to recover the liquid chemicals from the marine engine.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: January 28, 2003
    Inventor: Carl Prentice
  • Marine engine winterizing system
    Publication number: 20020069912
    Abstract: This is a system and procedure that uses either a hand pump system or an electric pump system to drain fresh water or sea water out of a marine engine, and then uses either the hand pump system or the electric pump system to install fresh water or other liquid chemicals into the marine engine, and also uses either the hand pump system or the electric pump system to recover the liquid chemicals from the marine engine.
    Type: Application
    Filed: September 7, 2001
    Publication date: June 13, 2002
    Inventor: Carl Prentice