USPatentGranted
S

Desk-top electronic calculator

Granted 4 Mar 1986 · no office action yet

Assignee: Canon Inc.

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Osamu Murakami, Eiichi Yoshioka · Examiner: Louis S. Zarfas · AU 292 · TC 2900

Application
557934
filed 5 Dec 1983
Publication
Not published
not published
Patent· this page
US D282853
granted 4 Mar 1986

Life of the patent

2 dated events
⤢ drag to zoomJan 1984Apr 1984Jul 1984Oct 1984Jan 1985Apr 1985Jul 1985Oct 1985Jan 1986Apr 1986Prosecution
Prosecutionhover for detail · click to open

Description

1 parts
›FIG. 1 is a front view of a…

FIG. 1 is a front view of a desk-top electronic calculator showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view as seen from the left of FIG. 1;

FIG. 6 is a side elevational view as seen from the right of FIG. 1 and

FIG. 7 is a perspective view of the desk-top electronic calculator.

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
D18/7

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
2.2 y
820 days filing → grant
Office actions
0
on the grant's record
Examiner
Louis S. Zarfas
art unit 292 · TC 2900
Citations: 5 back · 0 forward

Chain of title

⤢ drag to zoom19841986198819901992199419961998200020022004Owner 1
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.

Log in to unlock

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