with frame members not directly or resiliently connected to each other

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Patents Grantslast 30 patents

Information Patent Grant
Impact door construction and method of manufacture
- Patent number 5,459,972
- Issue date Oct 24, 1995
- Alan Eckel
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Polymer enclosed door
- Patent number 5,161,346
- Issue date Nov 10, 1992
- Larson Manufacturing Company
- Vernon D. Olson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polymer enclosed door
- Patent number 5,077,948
- Issue date Jan 7, 1992
- Larson Manufacturing Company
- Vernon D. Olson
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Doors
- Patent number 4,205,106
- Issue date May 27, 1980
- Perry Bros. (Hall Green) Limited
- Donald J. Perry
- B60 - VEHICLES IN GENERAL
Information Patent Grant
2839792
- Patent number 2,839,792
- Issue date Jun 24, 1958
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS