Patent US3091954A successfully refreshed from Google Patents.
US3091954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-piston pump for washing apparatus
Assignee: Motors Liquidation Co
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Filing: 1961-12-26
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Granted: 1963-06-04
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Norman J Bullock
- 👤 Robert F Brubaker
- 👤 Charles K Billings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
D; D06; D06F; D06F13/00; D06F13/04; D06F39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN COMBINATION WITH A CONTAINER ADAPTED TO CONTAIN FLUID AND AN OSCILLATING AGITATOR IN SAID FLUID, MEANS FORMING A CHAMBER HAVING AN INLET IN COMMUNICATION WITH SAID FLUID FOR RECEIVING FLUID FROM SAID CONTAINER AND AN OUTLET FOR SUPPLYING SAID FLUID, SAID CHAMBER BEING CONNECTED FOR MOVEMENT IN RESPONSE TO THE OSCILLATION OF SAID AGITATOR, AND FREE-FLOATING VALVE MEANS IN COMMUNICATION WITH SAID INLET AND SUBSTANTIALLY STATIONARY RELATIVE TO THE
Claim 2
Dependent Claim
70 words
IN COMBINATION WITH A CONTAINER ADAPTED TO CONTAIN FLUID AND AN OSCILLATING AGITATOR IN SAID FLUID, MEANS FORMING A CHAMBER HAVING AN INLET IN COMMUNICATION WITH SAID FLUID FOR RECEIVING FLUID FROM SAID CONTAINER AND AN OUTLET FOR SUPPLYING SAID FLUID, SAID CHAMBER BEING CONNECTED FOR MOVEMENT IN RESPONSE TO THE OSCILLATION OF SAID AGITATOR, AND FREE-FLOATING VALVE MEANS IN COMMUNICATION WITH SAID INLET AND SUBSTANTIALLY STATIONARY RELATIVE TO THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |