Patent US3125028A successfully refreshed from Google Patents.
US3125028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
rohde
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:19
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A CONSTANT DISPLACEMENT PUMP OF THE TYPE COMPRISING AN INLET PASSAGE AND A FLOW CONTROL ORIFICE THROUGH WHICH DISCHARGE FLUID PASSES, DIAPHRAGM MEANS IN WHICH THE ORIFICE IS LOCATED, MEANS COACTING WITH SAID DIAPHRAGM MEANS TO PROVIDE A PRESSURE CHAMBER AT ONE SIDE OF SAID DIAPHRAGM MEANS AND UPSTREAM OF SAID ORIFICE, MEANS COACTING WITH SAID DIAPHRAGM MEANS TO PROVIDE AN OUTLET CHAMBER AT THE OTHER SIDE OF SAID DIAPHRAGM MEANS, A VALVE ELEMENT OPERATIVELY CONNECTED WITH SAID DIAPHRAGM MEANS, MEANS PROVIDING A VALVE
Claim 2
Dependent Claim
85 words
IN A CONSTANT DISPLACEMENT PUMP OF THE TYPE COMPRISING AN INLET PASSAGE AND A FLOW CONTROL ORIFICE THROUGH WHICH DISCHARGE FLUID PASSES, DIAPHRAGM MEANS IN WHICH THE ORIFICE IS LOCATED, MEANS COACTING WITH SAID DIAPHRAGM MEANS TO PROVIDE A PRESSURE CHAMBER AT ONE SIDE OF SAID DIAPHRAGM MEANS AND UPSTREAM OF SAID ORIFICE, MEANS COACTING WITH SAID DIAPHRAGM MEANS TO PROVIDE AN OUTLET CHAMBER AT THE OTHER SIDE OF SAID DIAPHRAGM MEANS, A VALVE ELEMENT OPERATIVELY CONNECTED WITH SAID DIAPHRAGM MEANS, MEANS PROVIDING A VALVE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |