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US2666856A Expired / Lapsed US ⏱️ 0.0 years remaining

X-ray fluorescent response intensifier

Assignee: X RAY ELECTRONIC CORP
•
Filing: 1946-10-08
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Granted: 1954-01-19
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Expires: 1966-10-08
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Abstract

No abstract record available.

Inventors

  • 👤 Fua Frederic
  • 👤 Robert C Woods

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 13:35
CPC Classifications
G; G21; G21K; G21K4/00; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2006

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

FR559341A Cited
US1532782A Cited
FR560001A Cited
GB482354A Cited
US2177360A Cited
US2189623A Cited
US2233786A Cited
US2409162A Cited
US2401288A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-01-18 1957-07-20 1958-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-01-18 1961-07-20 1962-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-01-18 1965-07-20 1966-01-19 $7700.00 Window Closed / Lapsed

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