USPatentGranted
S

Traction hoist used in a powered suspended scaffold

Granted 6 Jan 1998 · no office action yet

Assignee: Nihon Biso Co., Ltd.

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Shizuka Kuryu · Examiner: Alan P. Douglas · AU 291 · TC 2900

Application
Not granted yet
filed 4 Dec 1996
Publication
Not published
not published
Patent· this page
US D388929
granted 6 Jan 1998

Life of the patent

2 dated events
⤢ drag to zoomJan 1997Apr 1997Jul 1997Oct 1997Jan 1998Prosecution
Prosecutionhover for detail · click to open

Description

1 parts
›FIG. 1 is front view of a traction…

FIG. 1 is front view of a traction hoist assembled with an electric motor;

FIG. 2 is a rear view of the traction hoist assembled with the electric motor;

FIG. 3 is a top plan view of the traction hoist assembled with the electric motor;

FIG. 4 is a bottom plan view of the traction hoist assembled with the electric motor;

FIG. 5 is a right side elevational view of the traction hoist assembled with the electric motor;

FIG. 6 is a left side elevational view of the traction hoist assembled with the electric motor;

FIG. 7 is a perspective view from the front and left side of the traction hoist assembled with the electric motor; and,

FIG. 8 is a perspective view from the front and right side of the traction hoist asembled with the electric motor.

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

Classifications

1 codes
USPC · US Patent Classification
D34/33

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
1.1 y
398 days filing → grant
Office actions
0
on the grant's record
Examiner
Alan P. Douglas
art unit 291 · TC 2900
Citations: 6 back · 0 forward

Term & fees

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

Log in to unlock

Validity challenges

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

Log in to unlock

Citations

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

Log in to unlock