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US3555086A Expired / Lapsed US ⏱️ 0.0 years remaining

Herbicidal n-octahydro-1,2,4-methenopentalenyl-(5)-ureas

Assignee: Novartis Corp
•
Filing: 1967-12-18
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Granted: 1971-01-12
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Expires: 1987-12-18
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Abstract

Abstract HERBICIDAL COMPOUNDS OF THE FORMULA 5-(R1-N(-R2)-CO-NH-)OCTAHYDRO-1,2,4-METHENOPENTALENE IN WHICH R1 REPRESENTS HYDROGEN, LOWER ALIPHATIC HYDROCARBONS CYCLOALKYL, LOWER ALKOXY, OR PHENYL, R2 REPRESENTS HYDROGEN, LOWER ALKYL, OR LOWER ALKENYL, OR R1 AND R2 TOGETHER REPRESENT ETHYLENEOXYETHYLENE OR A POLYMETHYLENE BRIDGING MEMBER. ARE DESCRIBED AS PARTICULARLY SUITABLE FOR CONTROLLING WEEDS AND UNDESIRABLE GRASSES. COMPOSITIONS CONTAINING THESE COMPOUNDS AS ACTIVE INGREDIENTS IN MIXTURE WITH AGRICULTURALLY ACCEPTABLE CARRIRS AND A METHOD OF CONTROLLING WEEDS AND UNDESIRABLE GRASSES WITH THE AID OF SUCH COMPOUNDS OR COMPOSITIONS CONTAINING THEM ARE ALSO DESCRIBED, AS WELL AS INTERMEDIATES WHICH ARE METHENOPENTALENE DERIVATIVES FROM WHICH THE COMPOUNDS OF THE ABOVE FORMULA CAN BE PRODUCED.

Inventors

  • 👤 Claus Dieter Weis
  • 👤 Jurg Rumpf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 23:04
CPC Classifications
C; C07; C07C; C07C61/00; C07C61/12; C07C61/125; C07C51/00; C07C51/58; C07C51/60

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) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

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