Patent US3534203A successfully refreshed from Google Patents.
US3534203A
Expired / Lapsed
US
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Linear and rotary magnetic motors
Assignee: HYPER LOOP Inc
•
Filing: 1967-11-29
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Granted: 1970-10-13
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Expires: 1987-11-29
Abstract
No abstract record available.
Inventors
- 👤 Marcel R Sommeria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:01
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/62; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/14; H01F7/145; H01F7/16; H01F7/1607; H02K41/00; H02K41/02; H02K2201/00; H02K2201/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US604128A
Cited
US2003647A
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US1933911A
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US2462533A
Cited
US2553292A
Cited
GB805223A
Cited
US3135880A
Cited
US3096467A
Cited
US3287616A
Cited
US3387151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |