IP Library › Granted Patent US 5,940,920
Granted Patent Utility
US 5,940,920 · App. 08/891,481

Pipe cleaning apparatus

Inventors: Michael T. Hare, Michael Stahle, Bruce Hare
Patented Case View Patent ↗
Granted: Aug 24, 1999 Filed: Jul 11, 1997
Inventors
Michael T. Hare
Michael Stahle
Bruce Hare
Assignee (at issue)
Philip Services Corp.

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Quick Facts
Patent No.
US 5,940,920
App. No.
08/891,481
Filed
1997-07-11
Granted
1999-08-24
Kind
A