Granted Patent
Utility
US 4,136,011 · App. 05/854,385
Transmission fluid filter and method for manufacture thereof
Inventors:
A. David Joseph, Elmer E. Ward
Patented Case
View Patent ↗
Granted: Jan 23, 1979
Filed: Nov 23, 1977
Inventors
A. David Joseph
Elmer E. Ward
Assignee (at issue)
Sealed Power Corporation
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.