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Expired European patentEurope

Process for the manufacture of disodium phosphate

EP 0240635 B1 · Applicant: NEGEV PHOSPHATES LTD.

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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 June 10, 1986 and granted March 7, 1990. A European patent lasts at most 20 years from filing, so its term ended June 10, 2006.
  • 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 December 10, 2011.
  • 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.
FiledJune 10, 1986
PublishedOctober 14, 1987
GrantedMarch 7, 1990
Term endedJune 10, 2006
Application numberEP 86304443
Classification (CPC)C01B25/303

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJune 10, 1986PublishedOct 14, 1987Patent grantedMarch 7, 1990Term endedJune 10, 2006

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.