US3031607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collector-free compounded synchronous generator
Assignee: Individual
•
Filing: 1959-11-17
•
Granted: 1962-04-24
•
Expires: 1979-11-17
Abstract
No abstract record available.
Inventors
- 👤 Rona Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/26; H02K19/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2913656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |