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US3728304A Expired / Lapsed US ⏱️ 0.0 years remaining

Flame-retarding organic synthetic high polymer composition

Assignee: DKS Co Ltd
•
Filing: 1971-03-02
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Granted: 1973-04-17
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Expires: 1991-03-02
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Abstract

Abstract A HALOGEN-CONTAINING ORGANIC COMPOUND, WHICH IS REPRESENTED BY THE FORMULA, 1-X1,2-X2,3-X3,4-X4,5-X5,6-(B-A-)BENZENE WHEREIN X1, X2, X3, X4 AND X5 ARE INDIVIDUALLY AN ALKYL, HALOALKYL, ALKOXY OR HALOALKOXY GROUP HAVING 1 TO 3 CARBON ATOMS, OR A HALOGEN OR HYDROGEN ATOM, A IS AN OXYGEN OR SULFUR ATOM, AND B IS A BRANCHED-CHAIN ALKYL, HALOALKYL, HYDROXYALKYL OR HYDROXYHALOALKYL GROUP HAVING 4 OR MORE CARBON ATOMS, AND WHICH COMPOUND HAS AT LEAST ONE HALOGEN ATOM IN THE MOLECULE, IMPARTS EXCELLENT FLAMERETARDENY TO AN ORGANIC SYNTHETIC HIGH POLYMER AND, AT THE SAME TIME, SCARCELY BLEEDS IN SAID HIGH POLYMER, IS EXCELLENT IN COMPATIBILITY THEREWITH AND FURTHER IMPARTS PLASTICITY THERETO.

Inventors

  • 👤 S Hirao
  • 👤 M Miyazaki
  • 👤 A Taniuchi
  • 👤 T Nakano

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 06:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/36; C08K5/37; C08K5/375

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-16 1976-10-16 1977-04-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-16 1980-10-16 1981-04-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-16 1984-10-16 1985-04-17 $7700.00 Window Closed / Lapsed

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