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US2742368A Expired / Lapsed US ⏱️ 0.0 years remaining

Stabilized and rust inhibited polymeric organosilicon compositions

Assignee: Dow Silicones Corp
•
Filing: 1951-08-02
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Granted: 1956-04-17
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Expires: 1971-08-02
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Abstract

No abstract record available.

Inventors

  • 👤 William T Rossiter
  • 👤 Chester C Currie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 22:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 129 words
THE METHOD OF STABILIZING AND RENDERING RUST INHIBITING A LIQUID ORGANOPOLYSILOXANE HAVING A RATIO OF FROM 1.9 TO 3 INCLUSIVE ORGANIC GROUPS ATTACHED TO SILICON PER SILICON ATOM, SAID ORGANIC GROUPS BEING SELECTED FROM THE GROUP CONSISTING OF METHYL AND PHENYL RADICALS, WHICH COMPRISES INCORPORATING THEREIN FROM 0.01 TO 1.0 PER CENT BY WEIGHT, BASED ON THE WEIGHT OF THE ORGANOPOLYSILOXANE, OF A TIN COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) COMPOUNDS OF THE GENERAL FORMULA R2SNZ2, WHERE R REPRESENTS AN ALKYL RADICAL OF FROM 2 TO 12 INCLUSIVE CARBON ATOMS AND Z REPRESENTS AN ALIPHATIC ACYLOXY RADICAL OF FROM 2 TO 12 INCLUSIVE CARBON ATOMS, (2) STANNOUS SALTS OF ALIPHATIC MONOCARBOXYLIC ACIDS OF FROM 4 TO 12 INCLUSIVE CARBON ATOMS, (3) TETRABUTYL TIN, AND (4) TETRAPHENYL TIN.

References Cited (Backward Citations)

US2389806A Cited
US2523281A Cited
US2614049A Cited
US2187802A Cited
US2334566A Cited
US2267779A Cited
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US2447483A Cited
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US2666685A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-04-17 1959-10-17 1960-04-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-04-17 1963-10-17 1964-04-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-04-17 1967-10-17 1968-04-17 $7700.00 Window Closed / Lapsed

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