PTO Wrapper PDF
Dossier Espace Google
Patent
   D268512
Priority
Aug 25 1980
Filed
Aug 25 1980
Issued
Apr 05 1983
Expiry
Apr 05 1997
Inventors
Lien, Doug…
Assg.orig
BOECKERS, …
Assg.curr
GRESEN DIV…
Entity
unknown
Referenced by
2
References
1
Maint.:
n/a
The ornamental design for a hydraulic locking valve, as shown and described.

FIG. 1 is a side elevational view of a hydraulic locking valve embodying my new design;

FIG. 2 is a top plan view thereof; and _

FIG. 3 is a bottom plan view thereof.

A side elevational view taken from any side other than _that shown in FIG. 1 is identical thereto.
INVENTORS:

Lien, Douglas E.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
9958087, Aug 28 2015 New Way Solutions, LLC Oil tank valve dart that holds oil tank valve closed and that further holds seal to be destroyed to remove dart
D769420, Sep 17 2015 New Way Solutions, LLC Oil valve sealing dart
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
232086,
ASSIGNMENT RECORDS    Assignment records on the USPTO
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Aug 22 1980LIEN DOUGLAS E BOECKERS, ROGER W ,ASSIGNMENT OF 1 2 OF ASSIGNORS INTEREST0037960527 pdf
Aug 25 1980Roger W., Boeckers(assignment on the face of the patent)
Apr 14 1982TECHNICAL POWER INDUSTRIES, INCORPORATEDGRESEN DIVISION OF DANA CORPORATION A CORP OF VAASSIGNMENT OF ASSIGNORS INTEREST 0041220851 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule