Patent US984084A successfully refreshed from Google Patents.
US984084A
Expired / Lapsed
US
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Valve-opening device.
Assignee: Individual
•
Filing: 1909-12-17
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Granted: 1911-02-14
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Expires: 1929-12-17
Abstract
No abstract record available.
Inventors
- 👤 George A Farrah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:32
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/168; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/8593; Y10T137/85978; Y10T137/86179; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949
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) | 1914-02-13 | 1914-08-15 | 1915-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-02-13 | 1918-08-15 | 1919-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-02-13 | 1922-08-15 | 1923-02-14 | $7700.00 | Window Closed / Lapsed |