US2630525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for transmitting and receiving coded entertainment programs
Assignee: MUSICAST Inc
•
Filing: 1951-05-25
•
Granted: 1953-03-03
•
Expires: 1971-05-25
Abstract
No abstract record available.
Inventors
- 👤 William M Tomberlin
- 👤 Louis G Mackenzie
- 👤 Paul K Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:53
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/09; H04H60/13; H04H60/14; H04H60/16; H04H20/00; H04H20/12; H04H20/28; H04H20/30; H04H20/31; Y; Y10; Y10S; Y10S358/00; Y10S358/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1565521A
Cited
US1988614A
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US2312897A
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US2392672A
Cited
US2482039A
Cited
US2524782A
Cited
US2573279A
Cited
US2480115A
Cited
US2547024A
Cited
US2596138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |