Provided is a film formation mask capable of preventing slit-like openings from being closed by vibrations so as to form a highly precise patterned film with stability. In a film formation mask formed by providing multiple slit-like openings in a metal foil, the shape of the opening of at least one end of the slit-like openings is asymmetrical with respect to a center line of the width direction of the slit-like openings.

Claims

1 · 1 independent · depth 1

1 granted claims

›1.independentA method of manufacturing an organic electroluminescence display device, comprising:nforming multiple first electrodes on a substrate;forming an organ…

Classifications

3 codes

IPC · International Patent Classification

Section H — Electricity

H01J9/00

USPC · US Patent Classification

445/24445/25

Claim changes

Soon

Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

⤢ drag to zoom

USPTOApplicanthover for detail · click to open

Pendency

1.9 y

678 days filing → grant

Office actions

after a restriction

Responses

1 RCE

Examiner

Anne Hines

art unit 2879 · TC 2800

Law firm

Law firm · Log in to unlock

Citations: 8 back · 0 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20120045958 A1	23 Feb 2012

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.