Portable electronic calculator
Granted 9 Jul 1985 · no office action yet
Current assignee: Seiko Epson Corporation · originally Kabushiki Kaisha Suwa Seikosha
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: Masaki Kurihara · Examiner: Louis S. Zarfas · AU 292 · TC 2900
Life of the patent
5 dated eventsDescription
1 parts›FIG. 1 is a right side view of…
FIG. 1 is a right side view of a portable electronic calculator showing my new design, the broken line showing of a supporting surface being illustrative of environment only;
FIG. 2 is a top plan view thereof taken along lines 2--2 of FIG. 1;
FIG. 3 is a front elevational view thereof taken along lines 3--3 of FIG. 1;
FIG. 4 is a left side view thereof;
FIG. 5 is a rear elevational view thereof taken along lines 5--5 of FIG. 1;
FIG. 6 is a bottom plan view thereof taken along lines 6--6 _of FIG. 1;
FIG. 7 is a top front right perspective view of the portable electronic calculator of FIG. 1 with the pivotable rear legs folded flat; and
FIG. 8 is a top front right perspective view of the _portable electronic calculator of FIG. 1 with the portable rear legs folded flat, the cover member in position on the top thereof and the retractable handle of the calculator extended.
Claims
1 · 1 independent · depth 1Classifications
2 codesClaim changes
SoonSee which claims were amended, added or cancelled during examination, with every added and removed word marked.
The published claims of this patent are not paired with the granted ones in what we hold.
File wrapper
Chain of title
See the full assignment history — every owner this patent has passed through, with recordation dates and reel/frame numbers.
Log in to unlockTerm & fees
See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.
Log in to unlockValidity challenges
See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.
Log in to unlockCitations
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