US2600870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic reverberation system
Assignee: RCA Corp
•
Filing: 1947-02-20
•
Granted: 1952-06-17
•
Expires: 1967-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jarrett L Hathaway
- 👤 Joseph G Petit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:47
CPC Classifications
G; G10; G10K; G10K15/00; G10K15/08; G10K15/10; Y; Y10; Y10S; Y10S84/00; Y10S84/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2001391A
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US2001387A
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US1961410A
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US1961159A
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US2189843A
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US2184321A
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US2230836A
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US2274370A
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US2509923A
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US2493638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |