4 patents
Utility
Hybrid manhole cover
16 Aug 22
A manhole cover includes a base with at least one opening therein to define a grate portion.
Hassan Shokouhi
Filed: 1 Oct 20
Utility
Manhole cover assembly
11 May 21
A manhole cover assembly includes a manhole cover supportable by a manhole frame.
Randy Burr
Filed: 8 Dec 17
Utility
Manhole cover assembly
6 Apr 21
An example manhole cover assembly includes a manhole cover and a latch assembly.
Hassan Shokouhi
Filed: 18 Jan 18
Utility
Floating manhole cover assembly
23 Mar 21
A manhole cover assembly comprises a base frame, the base frame comprising a base body and a base flange extending laterally outward from the base body.
Ryan Bonell, Hassan Shokouhi
Filed: 25 Feb 19
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