US3419030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast evacuation valve
Assignee: Individual
•
Filing: 1965-11-08
•
Granted: 1968-12-31
•
Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Gratzmuller Jean Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:56
CPC Classifications
H; H01; H01H; H01H33/00; H01H33/02; H01H33/28; H01H33/30; H01H33/34; B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/42; F; F15; F15B; F15B11/00; F15B11/08; F15B13/00; F15B13/02; F15B13/04; F15B13/0401; F15B13/0402; F16; F16K; F16K11/00; F16K11/10; F16K15/00; F16K15/02; F16K15/08; F16K24/00; F16K24/06; F15B2211/00; F15B2211/40; F15B2211/405; F15B2211/415; F15B2211/41581; F15B2211/42; F15B2211/428; F15B2211/46; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; H01H2033/308; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US122544A
Cited
US2488949A
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US2706487A
Cited
US2888909A
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US2900960A
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US2933069A
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US3042061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |