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 1884/CAL/1998 206840 22-Oct-199822-Oct-2018"METHOD AND APPARATUS FOR DECODING AN IMAGE SIGNAL"TERM EXPIRED
2 1874/CAL/1998 195386 22-Oct-199822-Oct-2018A REMOVABLE SHELF FOR DOMESTIC APPLIANCESTERM EXPIRED
3 2372/MAS/1998 202138 22-Oct-199822-Oct-2018PROCESS FOR THE PRODUCTION OF VIRGIN POLYMER SUBSTITUTE FROM A VULCANIZED POLYMERTERM EXPIRED
4 1875/CAL/1998 195498 22-Oct-199822-Oct-2018A STUD TENSIONING DEVICE FOR SECURING A FLANGE TO A COVERTERM EXPIRED
5 1873/CAL/1998 208190 22-Oct-199822-Oct-2018PROCESS FOR THE CONVERSION OF THREO (2R,3R)-2-HYDROXY-3(2-AMINOPHENYLTHIO)-3-(4-METHOXY PHENYL) PROPIONIC ACID DERIVATIVES INTO MIXTURES OF ENANTIOMERSTERM EXPIRED
6 677/BOM/1998 185798 22-Oct-199822-Oct-2018A PROCESS FOR MANUFACTURE OF AN ANTIGENIC PEPTIDE SUITABLE FOR USE IN HIV DIAGNOSISTERM EXPIRED
7 3096/DEL/1998 220318 22-Oct-199822-Oct-2018"POSITIONING SYSTEM FOR DIGITAL TELEPHONE NETWORKS"TERM EXPIRED
8 2375/MAS/1998 208477 22-Oct-199822-Oct-2018A METHOD FOR THE PRODCTION OF A DOUBLE- LAYERED STAINLESS STEEL LAMINAR ELEMENT AND A DOUBLE- LAYERED LAMINAR ELEMENTTERM EXPIRED
9 2373/MAS/1998 208476 22-Oct-199822-Oct-2018A METHOD OF MAKING METALLIC IRONTERM EXPIRED
10 3085/DEL/1998 215791 21-Oct-199821-Oct-2018"AN INTERNAL COMBUSTION ENGINE" TERM EXPIRED
11 2363/MAS/1998 210206 21-Oct-199821-Oct-2018A METHOD OF GRINDING A WORK PIECETERM EXPIRED
12 1867/CAL/1998 211031 21-Oct-199821-Oct-2018ACIDIC COMPOONENTS FOR THE PREPARATION OFEFFERVESCENT GRANULES OR TABLETS.TERM EXPIRED
13 3091/DEL/1998 216279 21-Oct-199821-Oct-2018A CLEANING COMPOSITIONTERM EXPIRED
14 IN/PCT/2001/00224/DEL 217103 21-Oct-199821-Oct-2018"A FUEL STACK FOR GENERATING ELECTRICAL ENERGY"TERM EXPIRED
15 3089/DEL/1998 231981 21-Oct-199821-Oct-2018" LAUNDRY BARS DETERGENT COMPOSITION"TERM EXPIRED
16 2364/MAS/1998 216499 21-Oct-199821-Oct-2018A NANOCOMPOSITE MAGNETIC MATERIALTERM EXPIRED
17 1870/CAL/1998 196137 21-Oct-199821-Oct-2018A CIRCUIT BREAKER FOR PROTECTING AN ELECTRICAL SYSTEMTERM EXPIRED
18 3088/DEL/1998 215479 21-Oct-199821-Oct-2018"A LAUNDRY DETERGENT BAR COMPOSITION"TERM EXPIRED
19 2362/MAS/1998 244249 21-Oct-199821-Oct-2018SUBSTITUTED BENZOPYRAN DERIVATIVES FOR THE TREATMENT OF INFLAMMATIONTERM EXPIRED
20 1849/CAL/1998 199981 20-Oct-199820-Oct-2018"ELECTRIC POWER TRANSLATING DEVICE"TERM EXPIRED
       
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