US2600573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound record disk
Assignee: Individual
•
Filing: 1946-08-14
•
Granted: 1952-06-17
•
Expires: 1966-08-14
Abstract
No abstract record available.
Inventors
- 👤 Rabkin William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:08
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68; G11B3/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US143608A
Cited
US850494A
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US877842A
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GB190908122A
Cited
US1675852A
Cited
US1804453A
Cited
GB337731A
Cited
AT124508B
Cited
US1863683A
Cited
US2092668A
Cited
US2544010A
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 |