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US2205337A Expired / Lapsed US ⏱️ 0.0 years remaining

Reaction products of ortho-phosphitobenzoyl chloride and method of making same

Assignee: ExxonMobil Oil Corp
•
Filing: 1938-12-15
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Granted: 1940-06-18
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Expires: 1958-12-15
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Abstract

No abstract record available.

Inventors

  • 👤 Henry G Berger
  • 👤 William H James
  • 👤 Darwin E Badertscher

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 23:25
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1943-06-18 1943-12-18 1944-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1947-06-18 1947-12-18 1948-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1951-06-18 1951-12-18 1952-06-18 $7700.00 Window Closed / Lapsed

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