Filter cover for powered air purifying respirator
Granted 30 Apr 2013 · no office action yet
Assignee: 3M Company
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: James E. Steffen, John M. Pilgrim, Nathan A. Abel, Gary E. Dwyer · Examiner: Ian Simmons · AU 2916 · TC 2900
Life of the patent
5 dated eventsDescription
1 parts›FIG. 1 is a front perspective view showing…
FIG. 1 is a front perspective view showing the new design for a filter cover for powered air purifying respirator;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is an enlarged left side view thereof; and,
FIG. 7 is an enlarged right side view thereof.
The broken lines enclosing portions of the article are included for the purpose of illustrating structure that is not part of the claimed design.
The shading is provided to illustrate contour only and is not an indication of surface texture.
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
See the full prosecution history — every USPTO and applicant action on this file, in order.
Log in to unlockChain 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
2 members · 2 offices›IP5 & PCT — 1 members
| Office | Publication | Kind | Published | Filed | Status | Title |
|---|---|---|---|---|---|---|
| USthis patent | US-D681190-S | S1 | 30 Apr 2013 | 15 Feb 2012 | granted | Filter cover for powered air purifying respirator |
›Other offices — 1 members
| Office | Publication | Kind | Published | Filed | Status | Title |
|---|---|---|---|---|---|---|
| AU | AU-344338-S | S | 11 Sep 2012 | 13 Aug 2012 | published | Filter cover for a powered air purifying respirator |
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