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Patent
   D984499
Priority
Mar 10 2021
Filed
Mar 10 2021
Issued
Apr 25 2023
Expiry
Apr 25 2038
Inventors
Dallaire, …
Assg.orig
ALBERTA WI…
Assg.curr
ALBERTA WI…
Entity
unknown
Referenced by
0
References
17
Maint.:
n/a
The ornamental design for a manhole riser sleeve, as shown and described.

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.
INVENTORS:

Dallaire, David

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
11021848, Jun 14 2012 Jerry L., McKinney Riser sections and risers made therefrom
4310372, Apr 19 1979 Certain-teed Corporation Method of making a well screen
4352512, Apr 19 1979 Certain-teed Corporation Molded fittings
4850136, Sep 14 1987 Plastic horticultural box
5608998, Mar 08 1995 CCI SPECTRUM, LLC; SPECTRASHIELD HOLDINGS, LLC Panel for lining manholes and the like
5800648, Jul 11 1994 SEALING SYSTEMS, INC Exterior lining for catch basin or manhole
5876533, Jul 11 1994 SEALING SYSTEMS, INC Method of sealing a manhole riser and a catch basin and apparatus for same
6047724, Feb 11 1998 QUANICS, INC Risers for a waste water treatment facility
6773206, Sep 07 2000 Support pile repair jacket form
7347644, Aug 04 2005 TWM IP, LLC Multi-use adapter ring for stackable riser components for on-site waste systems
7627992, Nov 05 2004 POLYLOK, INC Stackable riser and cover configuration
7966786, Jun 26 2003 Sim-Tech Filters, Inc. Molded sectioned riser and locking cover
8813447, Jul 09 2011 Apparatus and method for feed through construction
20040261343,
20100242377,
20120317891,
CA2778146,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 10 2021ALBERTA WILBERT SALES LTD(assignment on the face of the patent)
Mar 18 2021DALLAIRE, DAVIDALBERTA WILBERT SALES LTDASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0557940413 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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