US2631859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph record
Assignee: Individual
•
Filing: 1949-07-30
•
Granted: 1953-03-17
•
Expires: 1969-07-30
Abstract
No abstract record available.
Inventors
- 👤 Allan R Ellsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:49
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US946563A
Cited
US1665759A
Cited
AT124508B
Cited
US2050366A
Cited
US2092880A
Cited
US2287240A
Cited
US2346760A
Cited
GB561809A
Cited
US2503609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |