US2785291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color slide adapter
Assignee: Amplex Corp
•
Filing: 1952-10-18
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Granted: 1957-03-12
•
Expires: 1972-10-18
Abstract
No abstract record available.
Inventors
- 👤 Irving S Bernstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:48
CPC Classifications
F; F21; F21S; F21S8/00; F21V; F21V17/00; F21V17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1027621A
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US1811988A
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US2020944A
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US2066771A
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US2210312A
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US2313356A
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GB587256A
Cited
US2437522A
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US2476109A
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US2499555A
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US2530360A
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US2668903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |