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US2913367A Expired / Lapsed US ⏱️ 0.0 years remaining

Some phosphorus containing derivatives of alkyl acetothiolacetate

Assignee: Individual
•
Filing: 1956-03-09
•
Granted: 1959-11-17
•
Expires: 1976-03-09
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Abstract

No abstract record available.

Inventors

  • 👤 Thomas P Dawson
  • 👤 Elwyn R Lovejoy
  • 👤 Charles E Williamson
  • 👤 Witten Benjamin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:39
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4078

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 5 words
A COMPOUND OF THE FORMULA

References Cited (Backward Citations)

US2226420A Cited
AT167432B Cited
US2596076A Cited
US2685552A Cited
US2668828A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-11-16 1963-05-18 1963-11-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-11-16 1967-05-18 1967-11-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-11-16 1971-05-18 1971-11-17 $7700.00 Window Closed / Lapsed

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