Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1998-04-15
1999-03-09
Jackson, Marcus A.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
1005
Patent
active
D04065433
REFERENCES:
patent: D310642 (1990-09-01), Kulp
patent: D338631 (1993-08-01), Braverman
patent: 3380428 (1968-04-01), Abrams
patent: 4925334 (1990-05-01), Beard
patent: 5036791 (1991-08-01), Thurston
patent: 5234280 (1993-08-01), Cowan
patent: 5560732 (1996-10-01), Kulp et al.
1. Brochure entitled Top Stackable Channelizer Cone, prior to Apr. 15, 1998.
2. Brochure entitled New Grabber Vertical Panel Barricade, prior to Apr. 15, 1998.
Brown Gregory H.
Cowan David A.
Cowan David E.
Jackson Marcus A.
Plastic Safety Systems, Inc.
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