Granted Patent
Utility
US 4,600,511 · App. 06/642,370
Two-layer fluid filter with spacer
Inventors:
Victor Sherman, Ojars W. Pincers
Patented Case
View Patent ↗
Granted: Jul 15, 1986
Filed: Aug 20, 1984
Inventors
Victor Sherman
Ojars W. Pincers
Assignee (at issue)
Allomatic Industries, 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.