US2828782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic automatic liquid pump control
Assignee: Individual
•
Filing: 1954-04-19
•
Granted: 1958-04-01
•
Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Harold F Ripley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:35
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B67D7/44; B67D7/46; B67D7/465; G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1149256A
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US1607899A
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US1996944A
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US2130687A
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US2326415A
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US2361837A
Cited
US2663477A
Cited
US2585821A
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US2614185A
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US2692923A
Cited
US2729382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |