Patent US3475676A successfully refreshed from Google Patents.
US3475676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive power control system
Assignee: Individual
•
Filing: 1966-12-28
•
Granted: 1969-10-28
•
Expires: 1986-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jearld L Hutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:00
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968; H02; H02M; H02M1/00; H02M1/08; H02M1/088; H02M1/092; Y; Y10; Y10S; Y10S388/00; Y10S388/923; Y10S388/933; Y10S388/935; Y10S388/937
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2477208A
Cited
US3038083A
Cited
US3230421A
Cited
US3145304A
Cited
US3215849A
Cited
US3348131A
Cited
US3320437A
Cited
US3317789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |