|
PTO
Wrapper
PDF
|
|
Dossier
Espace
Google
|
|
|
|
Patent
D334940
|
|
Priority
Jul 19 1990
|
|
Filed
Jul 19 1990
|
|
Issued
Apr 20 1993
|
|
Expiry
Apr 20 2007
|
|
|
|
Assg.orig
|
|
|
|
Entity
unknown
|
|
9
|
|
9
|
|
n/a
|
|
|
|
The ornametnal design for a sight glass, as shown.
|
FIG. 1 is a front perspective view of a sight glass showing my invention;
FIG. 2 is a side elevational view;
FIG. 3 is an additional side elevational view thereof;
FIG. 4 is a top plan view; and,
FIG. 5 is a bottom plan view.
Wolinsky, Robert
| Patent |
Priority |
Assignee |
Title |
| 6499439, |
Jun 15 2001 |
Triad Metal Products Company |
Modular stamped sight glass assembly |
| 6578418, |
Nov 24 1997 |
|
Sight glass |
| D388448, |
Jul 06 1995 |
|
Magnifier lens |
| D390242, |
Dec 02 1996 |
SELDENCRAFT, INC |
Magnifying lens |
| D423538, |
Mar 25 1999 |
|
Sight glass |
| D429266, |
Mar 25 1999 |
|
Sight glass |
| D439261, |
Mar 25 1999 |
|
Sight glass |
| D444158, |
Aug 31 2000 |
|
Optical monitoring window having six wear resistant posts |
| D505145, |
Sep 03 2004 |
|
Sight glass |
| Patent |
Priority |
Assignee |
Title |
| 1485772, |
|
|
|
| 1501504, |
|
|
|
| 3020795, |
|
|
|
| 3345872, |
|
|
|
| 3438540, |
|
|
|
| 3936196, |
Oct 21 1974 |
UTI INSTRUMENTS COMPANY |
Fluid chamber having manipulatable window elements |
| 4162826, |
Mar 20 1978 |
PFAUDLER, INC |
Sight glass assembly and method for its production |
| 4468095, |
Mar 02 1982 |
Pressure Products Company, Inc. |
Sight glass assembly |
| 4803876, |
Jun 20 1988 |
|
Sight glass for observing lubricant in the lower gearcase of marine engines |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a