PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D254196
|
Priority
Apr 24 1978
|
Filed
Apr 24 1978
|
Issued
Feb 12 1980
|
Expiry
Feb 12 1994
|
|
Assg.orig
|
|
Entity
unknown
|
1
|
4
|
n/a
|
|
|
The ornamental design for a portable mandrel, as shown.
|
FIG. 1 is a front perspective view of a portable mandrel showing my new
design, taken from above;
FIG. 2 is a rear perspective view thereof, taken from below;
FIG. 3 is a bottom plan view.
Shulman, Michael H.
Patent |
Priority |
Assignee |
Title |
D640298, |
Jan 11 2011 |
|
Stepped mandrel |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a