Water-soluble fluid for use in machining of rare earth magnet
Granted 26 Nov 2013 · 4 office actions
Assignee: Shin-Etsu Chemical Co., Ltd.
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: Shigeru Sakai, Mikio Yoshida · Examiner: Vu A Nguyen · AU 1762 · TC 1700
Life of the patent
3 dated eventsAbstract
A polymeric flocculant is added to an aqueous solution comprising an organic acid and a basic compound to form a water-soluble fluid suitable for use in machining of rare earth magnet.
Claims
6 · 1 independent · depth 3Classifications
4 codes- C08L33/26
- C08K5/09
Claim 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 unlockTerm & fees
See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.
Log in to unlockPriority chain
1 priority documents›Priority documents — 1
| Type | Document | Date |
|---|---|---|
| related publication | US 20110281986 A1 | 17 Nov 2011 |
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