Patent US2864190A successfully refreshed from Google Patents.
US2864190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide changer for projectors
Assignee: Eastman Kodak Co
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Filing: 1956-09-04
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Granted: 1958-12-16
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 William H Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
D; D06; D06F; D06F73/00; G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR567557A
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US2104094A
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US2260660A
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US2532775A
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US2533441A
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US2583442A
Cited
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US2705437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |