US2724737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric color image formation and control
Assignee: Individual
•
Filing: 1951-01-29
•
Granted: 1955-11-22
•
Expires: 1971-01-29
Abstract
No abstract record available.
Inventors
- 👤 Alsede W Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
H; H04; H04N; H04N11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2109540A
Cited
US2219113A
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US2378746A
Cited
US2335180A
Cited
US2528510A
Cited
US2473276A
Cited
US2493200A
Cited
US2634327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |