US3106084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure controllers
Assignee: Lockheed Martin Corp
•
Filing: 1958-06-24
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Granted: 1963-10-08
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Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jess H Hoffman
- 👤 Thomas E Conover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:47
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/12; G; G05; G05D; G05D16/00; G05D16/20; G05D16/2093; G05D16/2097; Y; Y10; Y10S; Y10S116/00; Y10S116/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
IN A SYSTEM FOR PRODUCING FLUID PRESSURE VARIATIONS, PRESSURE GENERATING MEANS COMPRISING A FLUID CHAMBER AND A PISTON SLIDABLY DISPOSED BETWEEN TWO ENDS POSITIONS THEREIN TO PRODUCE ABSOLUTE PRESSURE VARIATIONS, MEANS COUPLED TO THE PISTON FOR OPERATING IT INCLUDING MEANS RESPONSIVE TO ITA ARRIVAL AT AN END POSITION FOR RECYCLING THE PISTON TO EXTEND ITS RANGE OF PRESSURES.
Claim 2
Dependent Claim
58 words
IN A SYSTEM FOR PRODUCING FLUID PRESSURE VARIATIONS, PRESSURE GENERATING MEANS COMPRISING A FLUID CHAMBER AND A PISTON SLIDABLY DISPOSED BETWEEN TWO ENDS POSITIONS THEREIN TO PRODUCE ABSOLUTE PRESSURE VARIATIONS, MEANS COUPLED TO THE PISTON FOR OPERATING IT INCLUDING MEANS RESPONSIVE TO ITA ARRIVAL AT AN END POSITION FOR RECYCLING THE PISTON TO EXTEND ITS RANGE OF PRESSURES.
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |