EXPIRED PATENTS

Disclaimer : The utility displays the Patents that have ceased to be in effect u/s 53(2). The displayed list is dynamic (Real time basis) and may be updated upon official actions u/s 60 (Restoration). Actual legal status may confirmed from the respective jurisdiction of Patent Office. The list also depends upon the digitization status of Patents. Therefore, descripancy, if any should be communicated to respective Patent Office at: delhi-patent@nic.in, mumbai-patent@nic.in, chennai-patent@nic.in, kolkata-patent@nic.in

* Note: Please select 'ALL' in Field of Invention to return the complete list. Data in other fields is subject to availablity of Field of Invention in the database

TERM EXPIRED

FIELD OF INVENTION

 
Sr.NoApplication NumberPATENT NUMBERDATE OF PATENTDATE OF CESSATIONTITLE OF INVENTIONSTATUS
1 1637/CHE/2006 246592 17-Oct-199717-Oct-2017A PROCESS FOR PRODUCING A PYRIDAZIN-3-ONE DERIVATIVETERM EXPIRED
2 617/BOM/1997 184844 17-Oct-199717-Oct-2017PROCESS & PLANT FOR MAKING BAKERS YEAST/DISTILLERS YEAST AND THE LIKE SUING FLOCCULATING YEAST.TERM EXPIRED
3 1951/CAL/1997 183120 17-Oct-199717-Oct-2017"PROCESS FOR PREPARING INHIBITORS OF SERINE PROTEASES, PARTICULARLY HEPATITIS C VIRUS NS 3 PROTEASES"TERM EXPIRED
4 2331/MAS/1997 183698 17-Oct-199717-Oct-2017" A PROCESS FOR PRODUCING A SOIL CONDITIONER CUM SLOW RELEASE BIO-PESTICIDAL FERTILIZER COMPOSITION".TERM EXPIRED
5 1946/CAL/1997 194899 17-Oct-199717-Oct-2017PROCESS FOR PRODUCING METHIONINETERM EXPIRED
6 2985/DEL/1997 232857 17-Oct-199717-Oct-2017''A METHOD AND APPARATUS FOR CONTINUOUSLY PRESSURE DECASTISING A FABRIC AND SETTING OF STAPLE FIBRE ASSEMBLIES''TERM EXPIRED
7 2986/DEL/1997 250883 17-Oct-199717-Oct-2017"PROCESS FOR PREPARING LARGE CRYSTAL ZEOLITES"TERM EXPIRED
8 1950/CAL/1997 194184 17-Oct-199717-Oct-2017A SCROLL COMPRESSOR WITH REVERSE ROTATION SOUND ATTENUATIONTERM EXPIRED
9 2340/MAS/1997 200798 17-Oct-199717-Oct-2017AN AUTOMATED METHOD FOR INSERTING REDUNDANT VIA PAIRS IN AN INTEGRATED CIRCUIT DESIGNTERM EXPIRED
10 2336/MAS/1997 204283 17-Oct-199717-Oct-20174-HYDRAZONO-3-TRIFLUOROMETHYL - 3 - HYDROXY CARBOXYLIC ACID AND A PROCESS FOR PRODUCING A PYRIDAZINE HERBICIDES THEREFROMTERM EXPIRED
11 2992/DEL/1997 230803 17-Oct-199717-Oct-2017"A METHOD OF PREPARING NI-M HYDROXYCARBONATE HAVING A HIGH DENSITY"TERM EXPIRED
12 2334/MAS/1997 226317 17-Oct-199717-Oct-2017A MULTIPHASE TABLETTERM EXPIRED
13 2987/DEL/1997 247981 17-Oct-199717-Oct-2017" THE PROCESS FOR THE PREPARATION OF LARGE ZEOLITE CRYSTALS"TERM EXPIRED
14 2332/MAS/1997 208325 17-Oct-199717-Oct-2017A COLOR CLARIFICATION METHODTERM EXPIRED
15 1944/CAL/1997 195468 17-Oct-199717-Oct-2017THERMAL SPRAY SYSTEMSTERM EXPIRED
16 2337/MAS/1997 202136 17-Oct-199717-Oct-2017METHOD AND APPARATUS FOR DETERMINING THE RATE OF RECEIVED DATA IN A VARIABLE RATE COMMUNICATION SYSTEMTERM EXPIRED
17 2318/MAS/1997 184327 16-Oct-199716-Oct-2017"A PROCESS FOR ISOLATING A PROTEIN RICH COMPOSITION SUBSTANTIALLY FREE OF MEMBRANE LIPIDS FORM ANIMAL MUSCLE TISSUE"TERM EXPIRED
18 1936/CAL/1997 199256 16-Oct-199716-Oct-2017TOOL HAVING A PROTECTIVE LAYER SYSTEMTERM EXPIRED
19 2307/MAS/1997 204435 16-Oct-199716-Oct-2017A SWING ARM AND AXLE CASING ASSEMBLY FOR TWO WHEELERSTERM EXPIRED
20 1935/CAL/1997 194448 16-Oct-199716-Oct-2017TOOL WITH TOOL BODY AND PROTECTIVE LAYER SYSTEMTERM EXPIRED
       
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