Granted Patent
Utility
US 4,841,948 · App. 07/105,001
Concave gase tissue expander
Inventors:
Bruce Bauer, William Dubrul, Tor E. Allen
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Oct 6, 1987
Inventors
Bruce Bauer
William Dubrul
Tor E. Allen
Assignee (at issue)
McGhan Medical Corporation
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.