IP Library › Granted Patent US 4,897,137
Granted Patent Utility
US 4,897,137 · App. 07/239,719

Primer for use on EPDM roofing materials

Inventors: Dennis P. Miller, Laurence G. Dammann
Patented Case View Patent ↗
Granted: Jan 30, 1990 Filed: Sep 1, 1988
Inventors
Dennis P. Miller
Laurence G. Dammann
Assignee (at issue)
Ashland Oil, Inc.

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Quick Facts
Patent No.
US 4,897,137
App. No.
07/239,719
Filed
1988-09-01
Granted
1990-01-30
Kind
A