Trademark: 74306696
Status Date
Wednesday, April 6, 1994
Filing Date
Monday, August 24, 1992
Abandoned Date
Tuesday, February 15, 1994
6 side pocket mandrels, gas lift mandrels, mandrels for use in oil and gas wells; static design plungers for use in plunger - lift type oil wells
7 pheumatically operated valves for use in gas lift applications in oil wells; pneumatically operated valves for use with tubular conduits; namely, pipes; well head bumpers for use in plunger-lift type oil wells; dynamic design plungers for use in plunger-lift type oil wells; static design plungers for use in plunger-lift type oil wells; pneumatically operated pumps for injecting chemicals into earth wells
9 manually operated valves for use with tubular conduits; namely, pipes; mechanically operated injection valves for injecting fluids into earth wells; electronic control devices for well pumping control systems; electronic control devices for controlling mechanized valves; electronic control devices for controlling pumps
11 catalytic space heaters which use propane or butane as fuel
Apr 6, 1994
Abandonment - Failure To Respond Or Late Response
Jul 1, 1993
Unresponsive/Duplicate Paper Received
Aug 12, 1993
Non-Final Action Mailed
Jun 17, 1993
Correspondence Received In Law Office
Dec 15, 1992
Non-Final Action Mailed
Nov 16, 1992
Assigned To Examiner
Trademark Alertz updated from USPTO on 2030-01-24
