Patent US6943602B1 successfully refreshed from Google Patents.
US2828664A
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US
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Finder for multiplex cameras
Assignee: CINERAMA Inc
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Filing: 1953-01-27
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Granted: 1958-04-01
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Expires: 1973-01-27
Abstract
No abstract record available.
Inventors
- 👤 Winton C Hoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:46
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; G03B37/00; G03B37/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1666304A
Cited
US973961A
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GB198815A
Cited
US1735109A
Cited
US2021507A
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GB405612A
Cited
US2622495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |