US3050270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel apparatus
Assignee: Sony Corp
•
Filing: 1959-09-16
•
Granted: 1962-08-21
•
Expires: 1979-09-16
Abstract
No abstract record available.
Inventors
- 👤 Iikura Shigetsune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:28
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB182565A
Cited
US1899279A
Cited
US2065575A
Cited
US2213613A
Cited
US2315703A
Cited
US2358504A
Cited
US2540897A
Cited
US2640659A
Cited
US2775411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |