PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D257770
|
Priority
Sep 22 1978
|
Filed
Sep 22 1978
|
Issued
Jan 06 1981
|
Expiry
Jan 06 1995
|
|
Assg.orig
|
|
Entity
unknown
|
4
|
3
|
n/a
|
|
|
The ornamental design for a double viewer cartridge, substantially as shown and described.
|
FIG. 1 is a front, top, and right side perspective view of a double viewer
cartridge showing my new design;
FIG. 2 is a front elevational view thereof, the rear view being identical
to the side shown;
FIG. 3 is a right side view thereof, the left side view being identical to
the side shown;
FIG. 4 is a top view thereof; and
FIG. 5 is a bottom view thereof.
Loofbourow, Donald I.
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a