US2622220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television color screen
Assignee: Technicolor Motion Picture Corp
•
Filing: 1949-03-22
•
Granted: 1952-12-16
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Geer Charles Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/30; H01J29/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2029639A
Cited
US2121356A
Cited
FR866065A
Cited
US2310863A
Cited
GB562168A
Cited
US2480848A
Cited
US2481839A
Cited
US2431113A
Cited
US2544690A
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US2543477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |