Two sided manhole step
Description
Portions or features of the two sided manhole step shown in broken lines in the drawings form no part of the claimed design.
Claims
I claim the ornamental design for a two sided manhole step, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- Occupational Safety and Health Administration, 20 C.F.R. Section 1910.27(b)(1)(v).
- M.A. Industries, Inc. Manhole Step Brochure, Aug. 1991, illustrating an actual size photo of M.A. Step model PS-1-PF.
Patent History
Patent number: D556917
Type: Grant
Filed: Apr 3, 2007
Date of Patent: Dec 4, 2007
Assignee: M.A. Industries, Inc. (Peachtree City, GA)
Inventors: Bobbie Don Peacock (Peachtree City, GA), Charles McInvale (Newnan, GA)
Primary Examiner: Doris Clark
Attorney: Kilpatrick Stockton LLP
Application Number: 29/285,595
Type: Grant
Filed: Apr 3, 2007
Date of Patent: Dec 4, 2007
Assignee: M.A. Industries, Inc. (Peachtree City, GA)
Inventors: Bobbie Don Peacock (Peachtree City, GA), Charles McInvale (Newnan, GA)
Primary Examiner: Doris Clark
Attorney: Kilpatrick Stockton LLP
Application Number: 29/285,595
Classifications
Current U.S. Class:
Stair Tread, Step Or Ladder Rung (D25/69)