Granted Patent
Utility
US 4,276,844 · App. 06/049,094
Soft sailboard
Inventor:
Michael J. Fremont
Patented Case
View Patent ↗
Granted: Jul 7, 1981
Filed: Jun 18, 1979
Inventor
Michael J. Fremont
Assignee (at issue)
Kransco Manufacturing, 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.