IP Library Granted Patent US 4,765,338
Granted Patent Utility
US 4,765,338 · App. 06/454,413

Reuseable heat transfer devices for the scalp

Inventors: Richard Turner, Vernon E. Stewart
Patented Case View Patent ↗
Granted: Aug 23, 1988 Filed: Dec 29, 1982
Inventors
Richard Turner
Vernon E. Stewart

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.

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Quick Facts
Patent No.
US 4,765,338
App. No.
06/454,413
Filed
1982-12-29
Granted
1988-08-23
Kind
A