Patent US2829288A successfully refreshed from Google Patents.
US2829288A
Expired / Lapsed
US
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Submersible motor construction
Assignee: Individual
•
Filing: 1954-07-26
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Granted: 1958-04-01
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Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Edward J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128; H02K5/1285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1657900A
Cited
US1879628A
Cited
US2218937A
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US2002913A
Cited
US2258064A
Cited
US2569741A
Cited
US2674702A
Cited
US2739252A
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 |