US2761985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submersible motor construction
Assignee: Individual
•
Filing: 1953-09-24
•
Granted: 1956-09-04
•
Expires: 1973-09-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:53
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)
GB121490A
Cited
US1678380A
Cited
GB283921A
Cited
GB463015A
Cited
US2080678A
Cited
US2428816A
Cited
US2428236A
Cited
US2573126A
Cited
US2583804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |