US2950920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic phonographs
Assignee: Individual
•
Filing: 1953-10-07
•
Granted: 1960-08-30
•
Expires: 1973-10-07
Abstract
No abstract record available.
Inventors
- 👤 James L D Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:00
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1925402A
Cited
GB520941A
Cited
US2592323A
Cited
US2598594A
Cited
GB668301A
Cited
US2712940A
Cited
US2634135A
Cited
US2777699A
Cited
US2648541A
Cited
US2657061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |