Granted Patent
Utility
US 4,287,928 · App. 05/791,760
Puncture-sealing tire
Inventor:
Robert W. Hallman
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Apr 28, 1977
Inventor
Robert W. Hallman
Assignee (at issue)
B. F. Goodrich Company
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.