Granted Patent
Utility
US 4,713,849 · App. 07/020,228
Pool liner retainer with closure clip
Inventor:
William M. Kindness
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Mar 2, 1987
Inventor
William M. Kindness
Assignee (at issue)
Kafko Manufacturing Limited
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.