US2306386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic apparatus
Assignee: CBS Broadcasting Inc
•
Filing: 1941-04-30
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Granted: 1942-12-29
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Expires: 1961-04-30
Abstract
No abstract record available.
Inventors
- 👤 John M Hollywood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:54
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/042; H04N; H04N5/00; H04N5/04; H04N5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-12-28 | 1946-06-29 | 1946-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-12-28 | 1950-06-29 | 1950-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-12-28 | 1954-06-29 | 1954-12-29 | $7700.00 | Window Closed / Lapsed |