Granted Patent
Utility
US 4,960,478 · App. 07/049,598
Apparatus and process for the fusion bonding of thermoplastic articles
Inventors:
Raymond K. Newkirk, David G. Holker
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: May 14, 1987
Inventors
Raymond K. Newkirk
David G. Holker
Assignee (at issue)
Tape 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.