Granted Patent
Utility
US 6,829,951 · App. 10/403,590
Process for the physical testing of rubber
Inventors:
John B. Putman, Matthew C. Putman
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Apr 1, 2003
Inventors
John B. Putman
Matthew C. Putman
Assignee (at issue)
Tech Pro, Inc.
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.