John T. Gerritsen

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Hanover Park, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Exterior jamb cladding and brick mold assembly
- Patent number 5,058,323
- Issue date Oct 22, 1991
- Jarrow Products, Inc.
- John Gerritsen
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Weatherstrip member with floating interior bulb
- Patent number 4,658,548
- Issue date Apr 21, 1987
- Jarrow Products Inc.
- John T. Gerritsen
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Magnet support and retainer for interior storm windows
- Patent number 4,592,180
- Issue date Jun 3, 1986
- Jarrow Products, Inc.
- John T. Gerritsen
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Magnetically sealed sliding window assembly
- Patent number 4,575,966
- Issue date Mar 18, 1986
- Jarrow Products, Inc.
- John T. Gerritsen
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES