WASHINGTON STEEL CORPORATION

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WASHINGTON, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Gripper means for stretcher leveler apparatus
- Patent number 4,982,593
- Issue date Jan 8, 1991
- Washington Steel Corporation
- Bertram A. Holloway
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Closure apparatus for a slab furnace and method of heating slabs th...
- Patent number 4,229,162
- Issue date Oct 21, 1980
- Washington Steel Corporation
- Richard G. Kotler
- C21 - METALLURGY OF IRON

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Trademarklast 30 trademarks

Information Trademark
74227667 - W
- Serial number 74227667
- Registration number 1795589
- Filing date Dec 3, 1991
- WASHINGTON STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73644056 - MICROFLEX
- Serial number 73644056
- Registration number 1492905
- Filing date Feb 2, 1987
- WASHINGTON STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
73634470 - MICROFLAT
- Serial number 73634470
- Registration number 1500166
- Filing date Dec 9, 1986
- WASHINGTON STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
71649971 - VERITHIN
- Serial number 71649971
- Registration number 586825
- Filing date Jul 7, 1953
- WASHINGTON STEEL CORPORATION
- 6 - Common metals and their alloys
Information Trademark
71511523 - MICROROLD
- Serial number 71511523
- Registration number 436467
- Filing date Oct 25, 1946
- WASHINGTON STEEL CORPORATION
- 6 - Common metals and their alloys