Measuring – testing – or signalling instruments – Security or signal instrument or casing – Alarm or control thereof
Design Patent
2001-07-20
2002-05-21
Jackson, Marcus A. (Department: 2911)
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Alarm or control thereof
Design Patent
active
D0457456
CLAIM:
The ornamental design for the gas detector, as shown and described in the accompanying figures.
REFERENCES:
patent: D350300 (1994-09-01), Browning et al.
patent: D381592 (1997-07-01), Goauld
patent: D385503 (1997-10-01), Velazquez
patent: D432037 (2000-10-01), Worth et al.
Crowcon Detection Instruments Ltd.
Jackson Marcus A.
Ohlandt Greeley Ruggiero & Perle LLP
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