Diffractive lens

Patent Abstract / Summary

Patent abstract is being processed or was not provided in English by the publishing office.

IPC Classifications

No IPC classifications recorded

Priority Claims

No priority claims recorded

Parties & Representation

Applicants

MINNESOTA MINING AND MANUFACTURING COMPANY

Inventors (0)

No inventors listed or waived publication

Representatives / Agents

No representative registered

Patent Oppositions

Official opposition proceedings filed against European Patent EP0412751 under EPC Article 99.

1 ACTIVE OPPONENT

#1

Opponent Company

Pentax Corporation

Representative

—

Filing Date

—

Opposition in Progress

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

0 Events Recorded

No legal events recorded or events are currently synchronizing.

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

0 Citations

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Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

0 Family Members

No family members recorded or family data currently updating.

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP90308633 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

Open 148-Doc Register Dossier

Recorded Filings & Patent Specifications

Official publication specifications, opposition filings, proprietor replies, and procedural submissions.

0 Filings Listed

No publication documents currently recorded.