US2769105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor suitable for use in an atmosphere containing magnetic particles
Assignee: Louis Allis Co
•
Filing: 1953-01-26
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Granted: 1956-10-30
•
Expires: 1973-01-26
Abstract
No abstract record available.
Inventors
- 👤 Wilmer J Altschwager
- 👤 Marcy F Aynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:31
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/10; H02K2205/00; H02K2205/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2644099A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |