Granted Patent
Utility
US 6,286,836 · App. 09/243,043
Sealed charging port and method of charging for a heat pipe roller
Inventor:
Bruce E. Hyllberg
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Feb 2, 1999
Inventor
Bruce E. Hyllberg
Assignee (at issue)
American Roller Company, LLC
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.