US3002521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surge controller for compressors and pumps
Assignee: Fairchild Stratos Corp
•
Filing: 1956-10-09
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Granted: 1961-10-03
•
Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 James C Greenlees
- 👤 William C Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:43
CPC Classifications
F; F17; F17D; F17D1/00; F17D1/20; F04; F04D; F04D27/00; F04D27/009; F04D27/02; F04D27/0207; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/7722; Y10T137/7758; Y10T137/7759
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1052172A
Cited
FR442245A
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US2091596A
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US2106036A
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US2408685A
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US2559623A
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US2455292A
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US2470565A
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US2539892A
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US2813672A
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US2745423A
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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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |