WESTPORT DEVELOPMENT AND MANUFACTURING CO., INC.

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MILFORD, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Snap switch having low resistance
- Patent number 5,302,789
- Issue date Apr 12, 1994
- Westport Development & Manufacturing Company, Inc.
- Robert R. Hellman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for forming and welding thin-wall tubing
- Patent number 4,905,885
- Issue date Mar 6, 1990
- Westport Development & Manufacturing Co., Inc.
- Robert H. Hellman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Dual acting snap switch
- Patent number 4,017,699
- Issue date Apr 12, 1977
- Westport Development & Mfg. Co., Inc.
- Robert R. Hellman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switch for sensing a selected ratio between two different pressures
- Patent number 4,006,329
- Issue date Feb 1, 1977
- Westport Development & Mfg. Co. Inc.
- Robert R. Hellman
- H01 - BASIC ELECTRIC ELEMENTS

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Trademarklast 30 trademarks

Information Trademark
72233203 - WESTPORT
- Serial number 72233203
- Registration number 836687
- Filing date Nov 23, 1965
- WESTPORT DEVELOPMENT AND MANUFACTURING CO., INC.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments