Patent US1940309A successfully refreshed from Google Patents.
Patent US785594A successfully refreshed from Google Patents.
US785594A
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Valve.
Assignee: Individual
•
Filing: 1904-11-11
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Granted: 1905-03-21
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Expires: 1924-11-11
Abstract
No abstract record available.
Inventors
- 👤 Clarence Gearhart Crispin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:08
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; F16K24/042; F16K24/044; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1908-03-20 | 1908-09-19 | 1909-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-03-20 | 1912-09-19 | 1913-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-03-20 | 1916-09-19 | 1917-03-21 | $7700.00 | Window Closed / Lapsed |