Granted Patent
Utility
US 4,502,814 · App. 06/446,522
Continuous crack and joint overlay
Inventor:
David C. Trimble
Patented Case
View Patent ↗
Granted: Mar 5, 1985
Filed: Dec 3, 1982
Inventor
David C. Trimble
Assignee (at issue)
HERCULES 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.