Patent US3422324A successfully refreshed from Google Patents.
US3422324A
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US
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Pressure variable capacitor
Assignee: National Aeronautics and Space Administration
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Filing: 1967-05-17
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Granted: 1969-01-14
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Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Royal G Harrison Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
G; G01; G01L; G01L13/00; G01L13/02; G01L13/025; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/24; G01D5/241; G01D5/2417; G01L9/00; G01L9/0041; G01L9/0072; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3008014A
Cited
US3136867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |