Patent US2744200A successfully refreshed from Google Patents.
US2744200A
Expired / Lapsed
US
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Multiple masked photocell structure
Assignee: General Electric Co
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Filing: 1952-03-07
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Granted: 1956-05-01
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Expires: 1972-03-07
Abstract
No abstract record available.
Inventors
- 👤 Clement F Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
H; H01; H01J; H01J40/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2089830A
Cited
FR812723A
Cited
US2217326A
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US2247805A
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US2503768A
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US2319212A
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US2353475A
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US2462823A
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US2520138A
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US2478598A
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US2466021A
Cited
FR925985A
Cited
US2587601A
Cited
US2579347A
Cited
US2668184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |