The broken lines, other than those indicated in the grid area, do not form part of the claimed design; the left view is omitted because it is a mirror image of the right view; the bottom view and the back view are omitted because they do not include any of the claimed areas.

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 a spectrum analyzer, as shown and described.

Classifications

1 codes

USPC · US Patent Classification

D10/81

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

2.1 y

764 days filing → grant

Office actions

after a restriction

Responses

no RCE

Examiner

George D. Kirschbaum

art unit 2922 · TC 2900

Law firm

Law firm · Log in to unlock

Citations: 44 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.