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US2777040A Expired / Lapsed US ⏱️ 0.0 years remaining

Large area photocell

Assignee: RCA Corp
•
Filing: 1955-08-17
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Granted: 1957-01-08
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Expires: 1975-08-17
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Abstract

No abstract record available.

Inventors

  • 👤 Kazan Benjamin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 17:25
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/28; H; H10; H10F; H10F30/00; H10F30/20; H10F99/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2045984A Cited
US2150168A Cited
US2683832A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-01-08 1960-07-09 1961-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-01-08 1964-07-09 1965-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-01-08 1968-07-09 1969-01-08 $7700.00 Window Closed / Lapsed

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