US2422778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color facsimile system
Assignee: Individual
•
Filing: 1945-02-15
•
Granted: 1947-06-24
•
Expires: 1965-02-15
Abstract
No abstract record available.
Inventors
- 👤 William G H Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/64; H04N1/48; H04N1/482; H04N1/50; H04N1/504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2010307A
Cited
US2099889A
Cited
US2193606A
Cited
US2278940A
Cited
US2297444A
Cited
US2297524A
Cited
US2343971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |