US2738501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture tube support
Assignee: Admiral Corp
•
Filing: 1952-12-31
•
Granted: 1956-03-13
•
Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Edward W Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:10
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/645; Y; Y10; Y10S; Y10S269/00; Y10S269/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1866028A
Cited
US2354661A
Cited
US2428928A
Cited
US2505736A
Cited
US2567996A
Cited
US2484345A
Cited
US2567303A
Cited
US2568631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |