Patent US770040A successfully refreshed from Google Patents.
Patent US1385019A successfully refreshed from Google Patents.
US1385019A
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Hydraulic valve
Assignee: Individual
•
Filing: 1920-04-09
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Granted: 1921-07-19
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Expires: 1940-04-09
Abstract
No abstract record available.
Inventors
- 👤 Mathieu Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0712; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86678; Y10T137/87169; Y10T137/87233; Y10T137/87241
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) | 1924-07-18 | 1925-01-17 | 1925-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-07-18 | 1929-01-17 | 1929-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-07-18 | 1933-01-17 | 1933-07-19 | $7700.00 | Window Closed / Lapsed |