Granted Patent
Utility
US 4,906,037 · App. 07/325,084
Externally accessible, clutching adjustable keeper mechanism
Inventors:
John C. Stammreich, William R. Bourne, Raymond E. Harmon
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Mar 17, 1989
Inventors
John C. Stammreich
William R. Bourne
Raymond E. Harmon
Assignee (at issue)
VSI, LLC
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.