US2942888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph and tone arm
Assignee: GOLDA A DUNCAN
•
Filing: 1953-04-13
•
Granted: 1960-06-28
•
Expires: 1973-04-13
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:15
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US639452A
Cited
US724435A
Cited
US1430185A
Cited
US1918777A
Cited
US1984637A
Cited
US2622883A
Cited
US2523340A
Cited
US2580071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |