Granted Patent
Utility
US 5,131,102 · App. 07/716,585
Spa cover lift assembly
Inventors:
Philip J. Salley, Edwin C. Sorensen, Roger J. Quellette
Patented Case
View Patent ↗
Granted: Jul 21, 1992
Filed: Jun 17, 1991
Inventors
Philip J. Salley
Edwin C. Sorensen
Roger J. Quellette
Assignee (at issue)
SPA Centers, Inc
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.