Patent US2438256A successfully refreshed from Google Patents.
US2438256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television cabinet
Assignee: Individual
•
Filing: 1945-04-27
•
Granted: 1948-03-23
•
Expires: 1965-04-27
Abstract
No abstract record available.
Inventors
- 👤 John I Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/64; H04N5/642
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1468547A
Cited
US1831817A
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US2039132A
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US2125006A
Cited
GB448653A
Cited
US2229302A
Cited
US2186570A
Cited
US2232399A
Cited
US2273801A
Cited
US2285509A
Cited
US2388761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |