PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D268322
|
Priority
Nov 24 1980
|
Filed
Nov 24 1980
|
Issued
Mar 22 1983
|
Expiry
Mar 22 1997
|
|
Assg.orig
|
|
Entity
unknown
|
2
|
5
|
n/a
|
|
|
The ornamental design for a door control system, as shown and described.
|
FIG. 1 is a plan view of a door control system according to the present
invention;
FIG. 2 is a left side elevational view of the door control system of FIG.
1;
FIG. 3 is a front elevational view of the door control system of FIG. 1;
FIG. 4 is what will be referred to as a rear and normally hidden view of
the door control system of FIG. 1; and
FIG. 5 is a bottom plan view of the door control system according to the
present invention.
Berkowitz, Irving L.
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a