Patent US2786386A successfully refreshed from Google Patents.
US2786386A
Expired / Lapsed
US
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Multi-frame films and method of production
Assignee: STEDMAN B HOAR
•
Filing: 1952-03-25
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Granted: 1957-03-26
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Expires: 1972-03-25
Abstract
No abstract record available.
Inventors
- 👤 Hoyt Karl Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:51
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; G; G03; G03D; G03D15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1402668A
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US1700616A
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US2084353A
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US2144457A
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US2168041A
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US2303960A
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US2415390A
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US2517250A
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US2539498A
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US2661652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |