FIG. 2 is a perspective view thereof; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 3 is a side elevational view of the air filter element depicted in FIG. 2, all other side elevational views being a mirror image thereof; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 4 is a perspective view of a second embodiment of an air filter element for engine air cleaner embodying our design; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 5 is a top end plan view of the air filter element depicted in FIG. 4; the side elevational views having the same appearance as that depicted in FIG. 3;

FIG. 6 is a perspective view of a third embodiment of an air filter element for engine air cleaner embodying our design; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 7 is a front side elevational view of the air filter element depicted in FIG. 6; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 8 is a rear side elevational view of the air filter element depicted in FIG. 6; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 9 is a right side elevational view of the air filter element depicted in FIG. 6, the left side elevational view being a mirror image thereof; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 10 is a top end plan view of the air filter element depicted in FIG. 6; and,

FIG. 11 is a bottom end plan view of the air filter element depicted in FIG. 6; the portions shown in broken lines being for illustrative purposes only and forming no part of the claimed design.

the grant prints no section headings; every part label below is ours, taken from that part's own first words

Claims

1 · 1 independent · depth 1

1 granted claims

›1.independentThe ornamental design for an air filter element for engine air cleaner, as shown and described.

Classifications

2 codes

IPC · International Patent Classification

Section /

/DRW

USPC · US Patent Classification

D23/365

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

2.6 y

960 days filing → grant

Office actions

after a restriction

Examiner

Lisa Lichtenstein

art unit 2911 · TC 2900

Law firm

Law firm · Log in to unlock

Citations: 9 back · 0 forward

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

Chain of title

⤢ drag to zoom

Titlehover for detail · click to open

See the full assignment history — every owner this patent has passed through, with recordation dates and reel/frame numbers.

Term & fees

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

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.