US3266288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure generating and regulating system
Assignee: Intercontinental Dynamics Corp
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Filing: 1964-04-30
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Granted: 1966-08-16
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Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Andresen
- 👤 Fitzpatrick James Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2013; G05D16/2026; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN AN AUTOMATIC PRESSURE GENERATING AND REGULATING SYSTEM FOR PROVIDING A PRESSURE REFERENCED TO A VACUUM, INCLUDING PUMP MEANS FOR CREATING A VACUUM, AND CONTROL VALVE MEANS FOR BLEEDING AIR TO SAID SYSTEM TO OBTAIN DESIRED PRESSURES, THE IMPROVEMENT COMPRISING: A PLURALITY OF PRESSURE TRANSDUCERS, EACH PRODUCING A NULL AT A PREDETERMINED VALUE OF PRESSURE; AN AMPLIFYING CIRCUIT HAVING A PROPORTIONAL AND AN INTEGRAL OUTPUT, MEANS FOR SELECTIVELY
Claim 2
Dependent Claim
68 words
IN AN AUTOMATIC PRESSURE GENERATING AND REGULATING SYSTEM FOR PROVIDING A PRESSURE REFERENCED TO A VACUUM, INCLUDING PUMP MEANS FOR CREATING A VACUUM, AND CONTROL VALVE MEANS FOR BLEEDING AIR TO SAID SYSTEM TO OBTAIN DESIRED PRESSURES, THE IMPROVEMENT COMPRISING: A PLURALITY OF PRESSURE TRANSDUCERS, EACH PRODUCING A NULL AT A PREDETERMINED VALUE OF PRESSURE; AN AMPLIFYING CIRCUIT HAVING A PROPORTIONAL AND AN INTEGRAL OUTPUT, MEANS FOR SELECTIVELY
References Cited (Backward Citations)
US2422702A
Cited
US3089331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |