US2911882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound recording attachment for motion picture cameras
Assignee: CENTAUR PRODUCTS Corp
•
Filing: 1956-03-15
•
Granted: 1959-11-10
•
Expires: 1976-03-15
Abstract
No abstract record available.
Inventors
- 👤 Hicks Walter Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:01
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)
US1877731A
Cited
US1786301A
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US1866712A
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US2064049A
Cited
US2379489A
Cited
US2532761A
Cited
US2681591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |