US2532761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic recorder adapter for motion-picture projectors
Assignee: Individual
•
Filing: 1947-02-10
•
Granted: 1950-12-05
•
Expires: 1967-02-10
Abstract
No abstract record available.
Inventors
- 👤 Blasio Conrad G De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:08
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1466750A
Cited
US1877731A
Cited
US1949409A
Cited
US2042027A
Cited
US1977569A
Cited
US2058193A
Cited
US2064049A
Cited
US2099376A
Cited
FR880599A
Cited
US2412318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |