Claims (1)
Claim 1 (Independent)
The ornamental design for a manhole riser sleeve, as shown and described.
Full Description
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FIG. 1 is a front-left-top perspective view of a manhole riser sleeve showing my new design.
FIG. 2 is a right side elevational view of the manhole riser sleeve.
FIG. 3 is a left side elevational view of the manhole riser sleeve.
FIG. 4 is a front-left perspective view of the manhole riser sleeve.
FIG. 5 is a front plan view of the manhole riser sleeve; and,
FIG. 6 is a back plan view of the manhole riser sleeve.
Citations
This patent cites (17)
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