Granted Patent
Utility
US 4,787,949 · App. 06/880,206
Method of manufacturing highly water absorbent pleated filter laminate
Inventors:
Frederic W. Cole, John E. Thurber
Patented Case
View Patent ↗
Granted: Nov 29, 1988
Filed: Jun 30, 1986
Inventors
Frederic W. Cole
John E. Thurber
Assignee (at issue)
Facet Automotive Filter Co.
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.