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A Process For The Preparation Of Nanosized Metal Phosphate Particles

This invention relates to a process for the preparation of nanosized metal phosphate particles comprising mixing required amount of pure metal phosphate with nitric acid, fuel and minor amount of polyvinyl alcohol in aqueous medium to obtain a homogenous mixture; drying or spray drying the said homogenous mixture by simple evaporation to obtain fluffy carbonaceious mass; calcinating the said carbonaceous mass at a suitable temperature depending on the chemical nature of the system to produce the dried nanosized particles.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
17 September 1998
Publication Number
Publication Type
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2006-01-13
Renewal Date

Applicants

INDIAN INSTITUTE OF TECHNOLOGY
KHARAGPUR

Inventors

1. PROF. P. PRAMANIK
KHARAGPUR 721302

Specification

Documents

Application Documents

# Name Date
1 1662-cal-1998-reply to examination report.pdf 2011-10-07
2 1662-cal-1998-granted-specification.pdf 2011-10-07
3 1662-cal-1998-granted-letter patent.pdf 2011-10-07
4 1662-cal-1998-granted-form 2.pdf 2011-10-07
5 1662-cal-1998-granted-form 1.pdf 2011-10-07
6 1662-cal-1998-granted-description (complete).pdf 2011-10-07
7 1662-cal-1998-granted-claims.pdf 2011-10-07
8 1662-cal-1998-granted-abstract.pdf 2011-10-07
9 1662-cal-1998-gpa.pdf 2011-10-07
10 1662-cal-1998-form 5.pdf 2011-10-07
11 1662-cal-1998-form 3.pdf 2011-10-07
12 1662-cal-1998-examination report.pdf 2011-10-07
13 1662-cal-1998-correspondence.pdf 2011-10-07
14 01662-cal-1998-gpa.pdf 2011-10-07
15 01662-cal-1998-form-5.pdf 2011-10-07
16 01662-cal-1998-form-3.pdf 2011-10-07
17 01662-cal-1998-form-2.pdf 2011-10-07
18 01662-cal-1998-form-2-1.1.pdf 2011-10-07
19 01662-cal-1998-form-1.pdf 2011-10-07
20 01662-cal-1998-description(provisional).pdf 2011-10-07
21 01662-cal-1998-description(complete).pdf 2011-10-07
22 01662-cal-1998-correspondence.pdf 2011-10-07
23 01662-cal-1998-claims.pdf 2011-10-07
24 01662-cal-1998-abstract.pdf 2011-10-07

ERegister / Renewals

3rd: 01 Aug 2006

From 17/09/2000 - To 17/09/2001

4th: 01 Aug 2006

From 17/09/2001 - To 17/09/2002

5th: 01 Aug 2006

From 17/09/2002 - To 17/09/2003

6th: 01 Aug 2006

From 17/09/2003 - To 17/09/2004

7th: 01 Aug 2006

From 17/09/2004 - To 17/09/2005

8th: 01 Aug 2006

From 17/09/2005 - To 17/09/2006

9th: 01 Aug 2006

From 17/09/2006 - To 17/09/2007

11th: 17 Sep 2008

From 17/09/2008 - To 17/09/2009