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US2989633A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus and process for radiation

Assignee: Standard Oil Co
•
Filing: 1956-02-08
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Granted: 1961-06-20
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Expires: 1976-02-08
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Abstract

No abstract record available.

Inventors

  • 👤 Alexander T Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 23:05
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; B01J19/082; H; H01; H01J; H01J37/00; H01J37/02; H01J37/18

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1630826A Cited
US2293840A Cited
US2504362A Cited
US2729748A Cited
US2640948A Cited
US2793282A Cited
US2794847A Cited
US2737593A Cited
US2785313A Cited
US2887584A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-06-19 1964-12-19 1965-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-06-19 1968-12-19 1969-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-06-19 1972-12-19 1973-06-20 $7700.00 Window Closed / Lapsed

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