US2486256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump control system
Assignee: Individual
•
Filing: 1944-08-31
•
Granted: 1949-10-25
•
Expires: 1964-08-31
Abstract
No abstract record available.
Inventors
- 👤 Chauncey M Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:29
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0072; Y; Y10; Y10S; Y10S91/00; Y10S91/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US826953A
Cited
US1009400A
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US1050916A
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US1903763A
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US1972812A
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US2029765A
Cited
US2237574A
Cited
US2246940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |