US793788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination relief and back-pressure valve.
Assignee: GEORGE F HUGHSON
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Filing: 1904-12-27
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Granted: 1905-07-04
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Expires: 1924-12-27
Abstract
No abstract record available.
Inventors
- 👤 William Hochfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:00
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/18; F16K17/19; F16K17/194; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4621; Y10T137/7722; Y10T137/7781; Y10T137/7837; Y10T137/785; Y10T137/7852; Y10T137/7853
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) | 1908-07-03 | 1909-01-02 | 1909-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-07-03 | 1913-01-02 | 1913-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-07-03 | 1917-01-02 | 1917-07-04 | $7700.00 | Window Closed / Lapsed |