US2844168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick acting valve with static seal
Assignee: Individual
•
Filing: 1952-09-18
•
Granted: 1958-07-22
•
Expires: 1972-09-18
Abstract
No abstract record available.
Inventors
- 👤 Karl A Klingler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:04
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K1/00; F16K1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/87016; Y10T137/87024; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1255389A
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FR786893A
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US2194256A
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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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |