US2858374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph record and reproducing apparatus
Assignee: CBS Broadcasting Inc
•
Filing: 1952-12-18
•
Granted: 1958-10-28
•
Expires: 1972-12-18
Abstract
No abstract record available.
Inventors
- 👤 Peter C Goldmark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:17
CPC Classifications
G; G11; G11B; G11B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908778A
Cited
GB190713858A
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US939781A
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FR457479A
Cited
US2126370A
Cited
FR558207A
Cited
US2114471A
Cited
US2142591A
Cited
US2600573A
Cited
US2519592A
Cited
US2631859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |