IP Library Granted Patent US 5,581,986
Granted Patent Utility
US 5,581,986 · App. 08/289,513

Low polluting lawn mower

Inventor: David A. Calver
Patented Case View Patent ↗
Granted: Dec 10, 1996 Filed: Aug 12, 1994
Inventor
David A. Calver
Assignee (at issue)
Envirogard, Inc.

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Quick Facts
Patent No.
US 5,581,986
App. No.
08/289,513
Filed
1994-08-12
Granted
1996-12-10
Kind
A