Granted Patent
Utility
US 4,549,829 · App. 06/422,604
Trunnion for hook and block assembly
Inventors:
Richard E. Springer, Gary Baxter
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Sep 24, 1982
Inventors
Richard E. Springer
Gary Baxter
Assignee (at issue)
The Crosby Group 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.