USPatentGranted
S

Ceiling unit

Granted 30 Nov 1993 · no office action yet

Assignee: USG Corporation

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: William J. Tinen, Jared R. Kies · Examiner: James R. Largen · AU 294 · TC 2900

Application
776484
filed 15 Oct 1991
Publication
Not published
not published
Patent· this page
US D341894
granted 30 Nov 1993

Life of the patent

2 dated events
⤢ drag to zoomOct 1991Jan 1992Apr 1992Jul 1992Oct 1992Jan 1993Apr 1993Jul 1993Oct 1993Jan 1994Prosecution
Prosecutionhover for detail · click to open

Description

1 parts
›FIG. 1 is a is a front perspective…

FIG. 1 is a is a front perspective view of a ceiling unit showing our new design, the rear being plain and unornamented, the pattern being repetitive as in FIG. 1 of the drawing disclosure, and the ceiling unit being of a conventional thickness; and,

FIG. 2 is a front elevational view showing one tile from the ceiling unit in greater detail.

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
D25/58

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
777 days filing → grant
Office actions
0
on the grant's record
Examiner
James R. Largen
art unit 294 · TC 2900
Citations: 7 back · 0 forward

Chain of title

⤢ drag to zoom19921994199619982000200220042006200820102012Owner 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