Manhole cover

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Information

Patent Grant
D428999

References
Source

Patent Number
D428,999
Date Filed
Wednesday, October 6, 1999
25 years ago
Date Issued
Tuesday, August 1, 2000
24 years ago

Inventors
Original Assignees
- Morrison Bros. Company
Examiners
- Clark; Doris
Agents
- Tilton Fallon Lungmus

US Classifications
- D25 - Building units and construction elements
Field of Search
- US
- D25 36
- 404 25
- 404 2
International Classifications
- 2502
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a manhole cover, substantially as shown and described.

US Referenced Citations (8)

Number	Name	Date	Kind
166574	Wilbur	Aug 1875
D225460	Altobello	Dec 1972
1799489	West	Jul 1931
4662777	Newton	May 1987
5123776	Lang et al.	Jun 1992
5312202	Newton	Dec 1972
5378078	Lewis et al.	Jan 1995
5529431	Walsh	Jun 1996