Donald R. Callentine

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Plainfield, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method pertaining to a pivoting barrier
- Patent number 8,413,297
- Issue date Apr 9, 2013
- The Chamberlain Group, Inc.
- Donald Richard Callentine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Drive motor reversal for a barrier operator or the like
- Patent number 7,525,265
- Issue date Apr 28, 2009
- The Chamberlain Group, Inc.
- Donald R. Callentine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Method Pertaining to a Pivoting Barrier
- Publication number 20100139188
- Publication date Jun 10, 2010
- Donald Richard Callentine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
MULTIPLE BARRIER OPERATOR SYSTEM
- Publication number 20080224819
- Publication date Sep 18, 2008
- The Chamberlain Group, Inc.
- Donald Richard Callentine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
Drive motor reversal for a barrier operator or the like
- Publication number 20070252545
- Publication date Nov 1, 2007
- The Chemberlan Group,Inc.
- Donald R. Callentine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES