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Expired European patentEurope

Composting method and apparatus utilizing air assist to aid in movement of organic matter

EP 0449946 B1 · Applicant: ASHBROOK-SIMON-HARTLEY CORPORATION

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Overview

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed December 7, 1989 and granted March 6, 1996. A European patent lasts at most 20 years from filing, so its term ended December 7, 2009.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by June 7, 2015.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledDecember 7, 1989
PublishedOctober 9, 1991
GrantedMarch 6, 1996
Term endedDecember 7, 2009
Application numberEP 90901294
Classification (CPC)C05F17/964 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedDec 7, 1989PublishedOct 9, 1991Patent grantedMarch 6, 1996Term endedDec 7, 2009

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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