USPatentGranted

Exhaust fan

Granted 10 Jul 2001 · no office action yet

Assignee: Chung Lun Yip

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Chung Lun Yip · Examiner: Lisa Lichtenstein · AU 2911 · TC 2900

Application

116481

filed 5 Jan 2000

Publication

Not published

not published

Patent· this page

US D444869

granted 10 Jul 2001

term adjustment not held

none

Litigation

checked

Classifications

Citations

1 cites · 0 cited by

Life of the patent

3 dated events

⤢ drag to zoom

ProsecutionTerm & feeshover for detail · click to open

Description

1 parts

›FIG. 1 is a front view of an…

FIG. 1 is a front view of an exhaust fan that incorporates my new design, showing the door in an opened position;

FIG. 2 is a left side view thereof, showing the door in the opened position;

FIG. 3 is a right side view thereof, showing the door in the opened position;

FIG. 4 is a rear view thereof, showing the door in the opened position;

FIG. 5 is a top view thereof, showing the door in the opened position;

FIG. 6 is a bottom view thereof, showing the door in the opened position;

FIG. 7 is a front bottom perspective view thereof, showing the door in the opened position;

FIG. 8 is a rear top perspective view thereof, showing the door in the opened position;

FIG. 9 is a front view thereof, showing the door in the closed position;

FIG. 10 is a left side view thereof, showing the door in the closed position;

FIG. 11 is a right side view thereof, showing the door in the closed position;

FIG. 12 is a rear view thereof, showing the door in the closed position;

FIG. 13 is a top view thereof, showing the door in the closed position;

FIG. 14 is a bottom view thereof, showing the door in the closed position;

FIG. 15 is a front bottom perspective view thereof, showing the door in the closed position; and,

FIG. 16 is a rear top perspective view thereof, showing the door in the closed position.

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 exhaust fan, as shown and described.

Classifications

1 codes

USPC · US Patent Classification

D23/371

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

Pendency

1.5 y

552 days filing → grant

Office actions

on the grant's record

Examiner

Lisa Lichtenstein

art unit 2911 · TC 2900

Law firm

Law firm · Log in to unlock

Citations: 1 back · 0 forward

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.