USPatentGranted
S

Combined check rail lock and keeper

Granted 19 Apr 1983 · no office action yet

Current assignee: SPX Corporation · originally Truth Incorporated

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Donald L. Anderson · Examiner: A. Hugo Word · AU 291 · TC 2900

Application
220297
filed 29 Dec 1981
Publication
Not published
not published
Patent· this page
US D268643
granted 19 Apr 1983

Life of the patent

5 dated events
⤢ drag to zoom19821984198619881990199219941996199820002002ProsecutionOwnershipTerm & fees
ProsecutionOwnershipTerm & feeshover for detail · click to open

Description

1 parts
›FIG. 1 is a top plan view of…

FIG. 1 is a top plan view of the combined check rail lock and keeper showing my new design;

FIG. 2 is a front elevational view of the combined check rail lock looking toward the right side of FIG. 1;

FIG. 3 is a rear elevational view of the combined check rail lock;

FIG. 4 is a side elevational view of the combined check rail lock;

FIG. 5 is a side elevational view of the combined check rail lock from the side opposite that shown in FIG. 4;

FIG. 6 is a rear elevational view of the keeper looking toward the left side of FIG. 1;

FIG. 7 is a front elevational view of the keeper; and

FIG. 8 is a side elevational view of the keeper.

The side of the keeper opposite that shown in FIG. 8 is a mirror image thereof and thus is not shown in the drawings.

The bottom sides of both the check rail lock and the keeper are essentially planar, and similarly are not shown in detail in the drawings.

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
D08/337

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
1.3 y
476 days filing → grant
Office actions
0
on the grant's record
Examiner
A. Hugo Word
art unit 291 · TC 2900
Citations: 11 back · 0 forward

Chain of title

⤢ drag to zoom19821984198619881990199219941996199820002002Owner 1Owner 2
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