Patent US2927174A successfully refreshed from Google Patents.
US2927174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible pump
Assignee: Individual
•
Filing: 1957-09-09
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Granted: 1960-03-01
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Walshin Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:14
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; F04D15/0218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1760382A
Cited
US1941815A
Cited
US2153421A
Cited
US2270784A
Cited
US2669934A
Cited
US2730591A
Cited
US2829598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |