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Patent opposition and revocation
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1. Opposition proceedings (section 21)
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Overview of the opposition process
1. Opposition proceedings (section 21)
Notice of opposition
Grounds of opposition
Priority dates
Statement of case
Regulation 49: Counterstatement
Evidence
Overview of the opposition process
Extensions of time
Costs
Document Actions
Overview of the opposition process
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Patent opposition and revocation
1. Opposition proceedings (section 21)
Notice of opposition
Grounds of opposition
Priority dates
Statement of case
Regulation 49: Counterstatement
Evidence
Overview of the opposition process
Extensions of time
Costs
2. Refusal of a patent without opposition (section 22)
Regulation 57: Notice to applicant
Regulation 58: Hearing
3. Revocation
Regulation 104: Application for revocation
Regulation 105: Procedure for opposing revocation
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Last updated 11 August 2008
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