US2842679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric controller
Assignee: Individual
•
Filing: 1952-03-04
•
Granted: 1958-07-08
•
Expires: 1972-03-04
Abstract
No abstract record available.
Inventors
- 👤 Jr William Nelson Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
H; H05; H05B; H05B39/00; H05B39/04; H05B39/041; H05B39/042; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1626663A
Cited
US1881521A
Cited
US2065421A
Cited
US2123470A
Cited
US2346794A
Cited
US2575951A
Cited
US2601182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |