US2525564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide-changing device
Assignee: Eastman Kodak Co
•
Filing: 1947-09-24
•
Granted: 1950-10-10
•
Expires: 1967-09-24
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:14
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US424857A
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US477337A
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US595165A
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US599556A
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US684630A
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US984055A
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US1002078A
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US1018439A
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US1159681A
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US1729304A
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US2260660A
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US2310047A
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US2364788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |