US2546124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record strip magazine and mounting
Assignee: RECORDGRAPH Corp
•
Filing: 1946-01-31
•
Granted: 1951-03-20
•
Expires: 1966-01-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick H M Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:47
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1125729A
Cited
US1757772A
Cited
US2115503A
Cited
GB466058A
Cited
US2183117A
Cited
US2120724A
Cited
US2166079A
Cited
DE679133C
Cited
US2198644A
Cited
US2217036A
Cited
US2238719A
Cited
US2323215A
Cited
CH216698A
Cited
US2279022A
Cited
US2327108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |