Patent
   D316765
Priority
Feb 29 1988
Filed
Feb 29 1988
Issued
May 07 1991
Expiry
May 07 2005
Assg.orig
Entity
unknown
8
4
n/a
The ornamental design for a cleaning machine, as shown and described.

FIG. 1 is a front perspective view of a cleaning machine showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a right side elevational view;

FIG. 5 is a rear elevational view;

FIG. 6 is a top plan view; and

FIG. 7 is a bottom plan view.

Wulff, Richard F.

Patent Priority Assignee Title
D344374, Jan 28 1992 Tennant Company Combined wet and dry vacuum cleaner
D345034, Apr 15 1991 General Electric Capital Corporation Self contained carpet cleaning machine
D352808, Aug 17 1992 Portable flood control vacuum cleaning machine
D364947, Mar 18 1994 General Electric Capital Corporation Self contained carpet cleaning machine
D370320, Nov 07 1994 Harris Research, Inc Cleaning machine
D374522, Jan 30 1995 AquaBroom Products Corporation Carpet cleaner
D381779, Aug 03 1994 NILFISK, INC Combined wet and dry vacuum cleaner
D912339, Mar 22 2018 P-LASER N V Laser cleaning device
Patent Priority Assignee Title
1542262,
4196492, Dec 20 1977 MINUTEMAN INTERNATIONAL, INC Automatic carpet cleaning machine
4200951, Oct 11 1977 COOPER INDUSTRIES, INC , A CORP OF DE Machine for cleaning surfaces
4759094, Oct 19 1987 MINUTEMAN INTERNATIONAL, INC Scrubbing machine
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 20 1988WULFF, RICHARD F CASTEX INDUSTRIES, INC ASSIGNMENT OF ASSIGNORS INTEREST 0048450944 pdf
Feb 29 1988Castex Industries, Inc.(assignment on the face of the patent)
Jun 02 1994CASTEX INDUSTRIES, INC Castex IncorporatedASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0070230469 pdf
Nov 27 2000Castex IncorporatedTennant CompanyMERGER SEE DOCUMENT FOR DETAILS 0117510434 pdf
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