US3021142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gramophone pick-up mechanism
Assignee: Individual
•
Filing: 1957-03-20
•
Granted: 1962-02-13
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Aubrey G Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/08; G11B3/095
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US737446A
Cited
US1206013A
Cited
US1525487A
Cited
US1711666A
Cited
US2256578A
Cited
US2192360A
Cited
US2169854A
Cited
US2243126A
Cited
US2494063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |