Gunter H. Berdan

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Toronto, CA

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Patents Grantslast 30 patents

Information Patent Grant
Spacer assembly for multiple glazed unit
- Patent number 4,850,175
- Issue date Jul 25, 1989
- Indal Limited
- Gunter Berdan
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Fold-up corner piece for spacer tube assembly
- Patent number 4,822,205
- Issue date Apr 18, 1989
- Indal Limited
- Gunter Berdan
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Spacer for double glazed windows incorporating interlock means
- Patent number 4,296,587
- Issue date Oct 27, 1981
- Custom Rollforming Company Limited
- Gunter Berdan
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Corner piece for a double glazed window construction
- Patent number 4,183,693
- Issue date Jan 15, 1980
- Custom Rollforming Company Limited
- Gunter H. Berdan
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS