Granted Patent
Utility
US 4,840,635 · App. 06/894,651
Full-fashion stump shrinker for the residual limb of a human amputee
Inventors:
William B. Smith, Martha M. Field, Lawrence K. Pierce, Jeffrey C. Dalbey
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Aug 8, 1986
Inventors
William B. Smith
Martha M. Field
Lawrence K. Pierce
Jeffrey C. Dalbey
Assignee (at issue)
Knit-Rite, 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.