Patent US2685891A successfully refreshed from Google Patents.
US2685891A
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Automatic fluid control means
Assignee: Individual
•
Filing: 1948-06-07
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Granted: 1954-08-10
•
Expires: 1968-06-07
Abstract
No abstract record available.
Inventors
- 👤 August L Segelhorst
- 👤 Warren W Stokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:15
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/8158; Y10T137/8225; Y10T137/8275; Y10T137/8593; Y10T137/87917; Y10T137/88022
Claims Analysis
Total Claims: 0
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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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |