In-out symbol for automatic opening hinged glass doors

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Description

FIG. 1 is a front elevational view of an in-out symbol for automatic opening hinged glass door showing my new design, the sign being of no substantial thickness; and

FIG. 2 is a front elevational view of a second embodiment of an in-out symbol for automatic opening hinged glass door.

Referenced Cited
U.S. Patent Documents
D242582 November 1976 Darrell
D242662 December 7, 1976 Darrell
D247795 April 25, 1978 Darrell
D248059 May 30, 1978 Darrell
D248060 May 30, 1978 Darrell
D248425 July 4, 1978 Darrell
Other references
  • Dreyfuss, Symbol Sourcebook, McGraw Hill Book Co., New York, 1972, pp. 30-37.
Patent History
Patent number: D273799
Type: Grant
Filed: Mar 1, 1982
Date of Patent: May 8, 1984
Inventor: Jack Darrell (Houston, TX)
Primary Examiner: Catherine E. Kemper
Attorney: Jack Darrell
Application Number: 6/353,532
Classifications
Current U.S. Class: Decalcomania (D20/11); D10/109; D/8404