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US3004465A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for reducing effect of scattered light in monochromators

Assignee: White Development Corp
•
Filing: 1956-09-19
•
Granted: 1961-10-17
•
Expires: 1976-09-19
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Abstract

No abstract record available.

Inventors

  • 👤 John U White

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 11:40
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/14

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1979964A Cited
US2043053A Cited
US2577815A Cited
US2607899A Cited
US2526509A Cited
US2631489A Cited
US2679184A Cited
US2743646A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-10-16 1965-04-17 1965-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-10-16 1969-04-17 1969-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-10-16 1973-04-17 1973-10-17 $7700.00 Window Closed / Lapsed

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