US3495148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current rotary electric machines
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1966-06-10
•
Granted: 1970-02-10
•
Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Maurice Marchal
- 👤 Maurice Pilato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:49
CPC Classifications
H; H02; H02K; H02K29/00; H02K29/06; H02K29/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3023348A
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US3096467A
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US3131341A
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US3204165A
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US3239741A
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US3319104A
Cited
US3299335A
Cited
US3350615A
Cited
US3328662A
Cited
US3366862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |