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US3826657A Expired / Lapsed US ⏱️ 0.0 years remaining

Surface-coating compositions that contain n1-(substituted ethyl)indazoles

Assignee: KAY-FRIES Inc
•
Filing: 1973-04-20
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Granted: 1974-07-30
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Expires: 1993-04-20
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Abstract

Abstract COMPOUNDS THAT HAVE THE STRUCTURAL FORMULA 1-(X-CH2-CH2-),3-Z,5-Y,7-Y''-1H-INDAZOLE WHEREIN X REPRESENTS HALOGEN, -SCN, -OR, OR -N=R''; Y AND Y'' EACH REPRESENTS HYDROGEN, HALOGEN, LOWER ALKYL, NITRO, AMINO, ACOYLAMINO, AROYLAMINO, (HALOBENZYLIDE) AMINO, OR-N=R''; Z REPRESENTS HYDROGEN, HALOGEN, ACOYLAMINO, OR-N=R''; R REPRESENTS HYDROGEN, ALKYL HAVING 1 TO 12 CARBON ATOMS, HALOALKYL HAVING 1 TO 4 CARBON ATOMS, PHENYL, OR SUBSTITUTED PHENYL WHEREIN THE SUBSTITUENT IS HALOGEN, HYDROXYL, ALKYL, OR NITRO; AND R'' REPRESENTS AN ALKYLENE GROUP HAVING 1 TO 8 CARBON ATOMS, ARE USED TO PROTECT SURFACE-COATING COMPOSITIONS FROM DETERIORATION RESULTING FROM ATTACK BY BACTERIA AND FUNGI. ILLUSTRATIVE OF THESE N1-(SUBSTITUTED ETHYL)INDAZOLES IN N1-(2-HYDROXYETHYL)-5-NITRO-INDAZOLE.

Inventors

  • 👤 P Minieri

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 00:25
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/14; C07; C07D; C07D231/00; C07D231/54; C07D231/56

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) 1977-07-29 1978-01-28 1978-07-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-29 1982-01-28 1982-07-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-29 1986-01-28 1986-07-30 $7700.00 Window Closed / Lapsed

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