IP Library › Granted Patent US 6,282,814
Granted Patent Utility
US 6,282,814 · App. 09/419,330

Spring cushioned shoe

Inventors: David Krafsur, Francis E. LeVert
Patented Case View Patent ↗
Granted: Sep 4, 2001 Filed: Oct 15, 1999
Inventors
David Krafsur
Francis E. LeVert
Assignee (at issue)
Shoe Spring, 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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,282,814
App. No.
09/419,330
Filed
1999-10-15
Granted
2001-09-04
Kind
A