Refrigerator filter
Granted 7 Apr 2026 · no office action yet
Assignee: TIANJIN SINOTECH ENVIRONMENTAL TECHNOLOGY DEVELOPMENT CO., LTD.
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: Jingguan Du, Lin Lou, Kai Zhang, Xin Guan · Examiner: Eric L Goodman · AU 2938 · TC 2900
Life of the patent
4 dated eventsDescription
1 parts›FIG. 1 is a top-front perspective view of…
FIG. 1 is a top-front perspective view of a refrigerator filter.
FIG. 2 is a front view of the refrigerator filter.
FIG. 3 is a rear view of the refrigerator filter.
FIG. 4 is a left view of the refrigerator filter.
FIG. 5 is a right view of the refrigerator filter.
FIG. 6 is a top view of the refrigerator filter; and,
FIG. 7 is a bottom view of the refrigerator filter.
The broken lines shown in the drawings illustrate portions of the article and form no part of the claimed design.
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