Laminated shingle
Granted 8 Feb 1994 · no office action yet
Current assignee: 3M Company · originally Elk Corporation of Dallas
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: Matti Kiik, William J. Schultz, Casimir P. Weaver · Examiner: A. Hugo Word · AU 294 · TC 2900
Life of the patent
6 dated eventsDescription
1 parts›FIG. 1 is a perspective view of a…
FIG. 1 is a perspective view of a single laminated shingle incorporating our design, with the back view being plain and unadorned;
FIG. 2 is a top plan view of our design;
FIG. 3 is a front elevational view of our design; and,
FIG. 4 is a left side view of our design, the right side being a mirror image.
Claims
1 · 1 independent · depth 1Classifications
1 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