US3370604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-priming liquid pumping system and primer valve
Assignee: PRIMAVAC SYSTEMS Inc A CORP OF NEW JERSEY
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Filing: 1964-12-16
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Granted: 1968-02-27
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Expires: 1984-12-16
Abstract
No abstract record available.
Inventors
- 👤 Pellegrino E Napolitano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:13
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F04; F04D; F04D9/00; F04D9/004; F04D9/005; F04D9/006; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2587; Y10T137/2599
Claims Analysis
Total Claims: 0
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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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |