US2505016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible slide film feed
Assignee: Argus Inc
•
Filing: 1947-03-06
•
Granted: 1950-04-25
•
Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 Broek Jan A Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:09
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/18; G03B1/20; G03B1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1560908A
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US1879844A
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GB381621A
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US1944500A
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US2019261A
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US2115014A
Cited
US2165419A
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US2213746A
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US2330709A
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US2280737A
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US2427294A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |