Patent US2087913A successfully refreshed from Google Patents.
US2087913A
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US
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Float valve
Assignee: Reconstruction Finance Corp
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Filing: 1935-08-26
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Granted: 1937-07-27
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Expires: 1955-08-26
Abstract
No abstract record available.
Inventors
- 👤 Mahlon W Kenney
- 👤 Arthur R Constantine
- 👤 Cecil W Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:38
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/315; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7316; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/794
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) | 1940-07-26 | 1941-01-25 | 1941-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-26 | 1945-01-25 | 1945-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-26 | 1949-01-25 | 1949-07-27 | $7700.00 | Window Closed / Lapsed |