Patent US2608903A successfully refreshed from Google Patents.
US2608903A
Expired / Lapsed
US
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Device for viewing pictures
Assignee: Individual
•
Filing: 1950-02-27
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Granted: 1952-09-02
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Expires: 1970-02-27
Abstract
No abstract record available.
Inventors
- 👤 Nemeth Otto Randolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:30
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/20; G02B30/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1237940A
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US2003480A
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US2029415A
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US2117910A
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US2142606A
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US2122649A
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US2207483A
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US2290307A
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US2199305A
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US2387758A
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US2451544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |