Granted Patent
Utility
US 4,529,215 · App. 06/463,550
Hydraulic cylinder safety lock
Inventor:
Glen L. Strand
Patented Case
View Patent ↗
Granted: Jul 16, 1985
Filed: Feb 3, 1983
Inventor
Glen L. Strand
Assignee (at issue)
TCI CO., LTD.
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.