Portion of a filter support
Granted 26 Jun 2001 · no office action yet
Current assignee: 3M Innovative Properties Company · originally 3M Company
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: William A. Mittelstadt, David M. Castiglione · Examiner: Lisa Lichtenstein · AU 2911 · TC 2900
Life of the patent
5 dated eventsDescription
1 parts›FIG. 1 is a perspective view of a…
FIG. 1 is a perspective view of a portion of a filter support showing the new design.
FIG. 2 is an enlarged perspective view within the circled area 2 shown in FIG. 1.
FIG. 3 is a partially broken right side elevational view thereof.
FIG. 4 is a partially broken left side elevational view thereof.
FIG. 5 is a top elevational view thereof.
FIG. 6 is a bottom elevational view thereof; and,
FIG. 7 is a front elevational view thereof.
The broken lines showing of a filter support shown in FIGS. 1-7 is for illustrative purposes only and forms no part of the claimed design. The broken lines on the ends of the design shown in FIGS. 2-4 are provided to show the portion of the filter support being claimed. The broken line circle is provided only to highlight the portion of the filter support for which the design is directed. The surface shading is provided merely to illustrate contour; it is not indicative of any particular surface texture, transparency, et cetera.
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 unlockWorldwide family
3 members · 3 offices›IP5 & PCT — 1 members
| Office | Publication | Kind | Published | Filed | Status | Title |
|---|---|---|---|---|---|---|
| USthis patent | US-D444218-S | S1 | 26 Jun 2001 | 2 Mar 1999 | granted | Portion of a filter support |
›Other offices — 2 members
| Office | Publication | Kind | Published | Filed | Status | Title |
|---|---|---|---|---|---|---|
| AU | AU-141960-S | S | 9 Oct 2000 | 9 Aug 1999 | published | Filter support |
| CA | CA-95501-S | S | 19 Sep 2003 | 30 Aug 1999 | granted | Filter support for a respirator helmet |
Validity 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