New Zealand accession dates for overseas patent specifications

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In this practice guideline

New Zealand accession dates for overseas patent specifications

Evidence of the date an overseas published patent specification was available in New Zealand is required to support the ground of prior publication in opposition or revocation proceedings. The date that these patent specifications were made publically available in New Zealand is referred to as an Accession Date.

Acceptable evidence of this date can be shown by identifying the specification within our past collection of overseas patent specifications.

IPONZ has compiled tables of these records, accession dates where known and the location of the records.

To view the tables of records, select a country or category from the list of our past collection:

US specifications post-August 2007

IPONZ stopped receiving US Patent Specifications after August 2007. Accession dates after this time are determined by:

  1. the date the patent was published on the US website, or
  2. one month after the above.

In this practice guideline

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