US2786952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible electric motor
Assignee: Individual
•
Filing: 1952-05-29
•
Granted: 1957-03-26
•
Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Friedrich W Pleuger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:37
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US856245A
Cited
US1454041A
Cited
GB423689A
Cited
US2043236A
Cited
US2568548A
Cited
US2570682A
Cited
US2573126A
Cited
US2600277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |