US2987664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. voltage regulator
Assignee: Teledyne Ryan Aeronautical Corp
•
Filing: 1958-05-23
•
Granted: 1961-06-06
•
Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jules H Poirier
- 👤 Shaw Arthur
- 👤 John W Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/337; H02M3/3376; H02M3/3378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2573402A
Cited
US2683852A
Cited
US2791739A
Cited
US2785236A
Cited
US2848614A
Cited
US2849614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |