US2810083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic oscillating motors
Assignee: HAFT AND SONS Inc
•
Filing: 1953-08-31
•
Granted: 1957-10-15
•
Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Dunay John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:03
CPC Classifications
H; H02; H02K; H02K33/00; H02K33/02; H02K33/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR523399A
Cited
GB232975A
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US1943046A
Cited
DE640013C
Cited
GB416267A
Cited
US2093582A
Cited
US2428247A
Cited
US2583741A
Cited
US2589959A
Cited
US2598954A
Cited
FR1034804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |