US2776837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive engagement interlocking phonograph record
Assignee: Individual
•
Filing: 1952-06-30
•
Granted: 1957-01-08
•
Expires: 1972-06-30
Abstract
No abstract record available.
Inventors
- 👤 Herman H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68; G11B3/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1288610A
Cited
US1675852A
Cited
US1804453A
Cited
AT124508B
Cited
US2544010A
Cited
US2600573A
Cited
US2559786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |