Patent US3303766A successfully refreshed from Google Patents.
US3303766A
Expired / Lapsed
US
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Camera shutter arrangement responsive to both photoelectric and mechanical time control systems
Assignee: Pentax Corp
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Filing: 1964-04-28
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Granted: 1967-02-14
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Karikawa Toru
- 👤 Ito Kiyoshi
- 👤 Uno Naoyuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |