US2522997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph pickup arm
Assignee: Individual
•
Filing: 1944-11-20
•
Granted: 1950-09-19
•
Expires: 1964-11-20
Abstract
No abstract record available.
Inventors
- 👤 Archie E Coppleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:22
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1349636A
Cited
US1438642A
Cited
GB300704A
Cited
GB305354A
Cited
FR676429A
Cited
US2025300A
Cited
US1933400A
Cited
GB398262A
Cited
GB386851A
Cited
US1963673A
Cited
US2303619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |