Parker Appliance Co
Parker AppActive Patents
0
Total Holdings
39
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2860653A | Apparatus for controlling the emptying of tanks | Expired / Lapsed | 1955-01-24 | 1958-11-18 | 0 | Details |
| US2661926A | Rotary plug type valve | Expired / Lapsed | 1950-08-10 | 1953-12-08 | 0 | Details |
| US2655173A | Piston actuated sleeve type relief valve | Expired / Lapsed | 1949-10-08 | 1953-10-13 | 0 | Details |
| US2628060A | Rotary plug valve seat | Expired / Lapsed | 1945-05-15 | 1953-02-10 | 0 | Details |
| US2625955A | Closure cap for tube fittings | Expired / Lapsed | 1946-03-25 | 1953-01-20 | 0 | Details |
| US2619103A | Speed and aneroid controlled pilot operated valve | Expired / Lapsed | 1947-01-31 | 1952-11-25 | 0 | Details |
| US2548354A | Attachment for filling and draining fuel tanks | Expired / Lapsed | 1947-11-13 | 1951-04-10 | 0 | Details |
| US2541464A | Fluid throttling valve | Expired / Lapsed | 1944-11-28 | 1951-02-13 | 0 | Details |
| US2533931A | Valve assembly | Expired / Lapsed | 1944-12-05 | 1950-12-12 | 0 | Details |
| US2521248A | Packing means | Expired / Lapsed | 1944-12-13 | 1950-09-05 | 0 | Details |
| US2496510A | Tube coupling | Expired / Lapsed | 1946-06-29 | 1950-02-07 | 0 | Details |
| US2478149A | Coupling for tubes | Expired / Lapsed | 1944-12-29 | 1949-08-02 | 0 | Details |
| US2478127A | Emergency repair coupling | Expired / Lapsed | 1944-12-14 | 1949-08-02 | 0 | Details |
| US2466526A | Coupling for tubes | Expired / Lapsed | 1944-04-08 | 1949-04-05 | 0 | Details |
| US2450314A | Coupling for flareless tubes | Expired / Lapsed | 1944-07-05 | 1948-09-28 | 0 | Details |
| US2444622A | Coupling for tubes | Expired / Lapsed | 1944-09-22 | 1948-07-06 | 0 | Details |
| US2438999A | Automatic means for clamping and deforming the ends of tubes | Expired / Lapsed | 1945-02-20 | 1948-04-06 | 0 | Details |
| US2438679A | Manifold tube coupling | Expired / Lapsed | 1945-05-15 | 1948-03-30 | 0 | Details |
| US2432225A | Valve assembly | Expired / Lapsed | 1944-12-01 | 1947-12-09 | 0 | Details |
| US2431769A | Quick opening check valve assembly | Expired / Lapsed | 1943-04-30 | 1947-12-02 | 0 | Details |
| US2422158A | Flexible coupling | Expired / Lapsed | 1944-11-21 | 1947-06-10 | 0 | Details |
| US2419481A | Valve structure | Expired / Lapsed | 1944-06-09 | 1947-04-22 | 0 | Details |
| US2415258A | Hydraulic relief valve | Expired / Lapsed | 1943-02-04 | 1947-02-04 | 0 | Details |
| US2414966A | Valve assembly | Expired / Lapsed | 1945-02-15 | 1947-01-28 | 0 | Details |
| US2413878A | Elbow pipe coupling | Expired / Lapsed | 1944-07-06 | 1947-01-07 | 0 | Details |
| US2412664A | Coupling for tubes | Expired / Lapsed | 1944-05-20 | 1946-12-17 | 0 | Details |
| US2410971A | Screw driver | Expired / Lapsed | 1943-12-10 | 1946-11-12 | 0 | Details |
| US2398618A | Coupling for tubes | Expired / Lapsed | 1945-01-08 | 1946-04-16 | 0 | Details |
| US2394097A | Pipe coupling | Expired / Lapsed | 1944-05-18 | 1946-02-05 | 0 | Details |
| US2393681A | Torque wrench | Expired / Lapsed | 1942-11-13 | 1946-01-29 | 0 | Details |
| US2383983A | Valve assembly | Expired / Lapsed | 1944-06-09 | 1945-09-04 | 0 | Details |
| US2383733A | Tube structure | Expired / Lapsed | 1941-03-31 | 1945-08-28 | 0 | Details |
| US2351872A | Hydraulic press | Expired / Lapsed | 1941-03-31 | 1944-06-20 | 0 | Details |
| US2351873A | Relief valve | Expired / Lapsed | 1941-03-31 | 1944-06-20 | 0 | Details |
| US2351871A | Valve assembly | Expired / Lapsed | 1941-03-31 | 1944-06-20 | 0 | Details |
| US2351363A | Coupling for tubes | Expired / Lapsed | 1942-08-20 | 1944-06-13 | 0 | Details |
| US2351362A | Coupling for tubes | Expired / Lapsed | 1942-06-08 | 1944-06-13 | 0 | Details |
| US2343922A | Tube coupling | Expired / Lapsed | 1943-03-16 | 1944-03-14 | 0 | Details |
| US2342425A | Pipe coupling | Expired / Lapsed | 1941-03-31 | 1944-02-22 | 0 | Details |