US2480848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television device
Assignee: Individual
•
Filing: 1944-07-11
•
Granted: 1949-09-06
•
Expires: 1964-07-11
Abstract
No abstract record available.
Inventors
- 👤 Geer Charles Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:23
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J31/201; H01J2231/00; H01J2231/12; H01J2231/125; H01J2231/1255
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1934821A
Cited
US1988605A
Cited
GB395578A
Cited
US2083203A
Cited
US2074737A
Cited
US2179205A
Cited
US2330172A
Cited
US2307188A
Cited
US2310863A
Cited
GB562168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |