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 3547/DEL/1997 215200 10-Dec-199710-Dec-2017"FORE AND AFT INTERLOCKING BRAKING DEVICE FOR MOTORCYCLE"TERM EXPIRED
2 2842/MAS/1997 212462 10-Dec-199710-Dec-2017AN INVERTER CONTROL DEVICE AND METHOD FOR CONTROLLING AN INVERTERTERM EXPIRED
3 3566/DEL/1997 215694 10-Dec-199710-Dec-2017"MEDICAL CATHETER DRESSING DEVICE"TERM EXPIRED
4 2336/CAL/1997 194920 10-Dec-199710-Dec-2017PRINTING APPARATUSTERM EXPIRED
5 3567/DEL/1997 197354 10-Dec-199710-Dec-2017"ARC FURNACE AND METHOD OF CONTROLLING THE INCIDENCE OF STRAY ARCING THEREIN"TERM EXPIRED
6 2339/CAL/1997 211047 10-Dec-199710-Dec-2017WASHING DRUM FOR A WASH TREATMENT MACHINE AND A TOOL FOR PRODUCING THE SAMETERM EXPIRED
7 2833/MAS/1997 200457 10-Dec-199710-Dec-2017A METHOD FOR PRODUCING CHLORINATED RUBBER AND AN APPARATUS THEREFORTERM EXPIRED
8 2829/MAS/1997 185465 10-Dec-199710-Dec-2017" A PROCESS FOR PREPARING A CONFECTIONERY OR ICR CREAM PRODUCT WITH A CHOCOLATE COATING HAVING A MARBLED AP PEARRANCE"TERM EXPIRED
9 3562/DEL/1997 214715 10-Dec-199710-Dec-2017"A PROCESS FOR THE CATALYTIC FLUORINATION OF SATURATED OR OLEFINIC HALOGENATED HYDROCARBONS"TERM EXPIRED
10 3548/DEL/1997 223096 10-Dec-199710-Dec-2017" AN OPTICAL RECEIVER AND AN OPTICAL RECEIVER"TERM EXPIRED
11 3560/DEL/1997 215298 10-Dec-199710-Dec-2017"A PROCESS FOR MAKING A FREE-FLOWING, PARTICULATE DYE TRANSFER INHIBITING DETERGENT COMPONENT"TERM EXPIRED
12 3552/DEL/1997 215646 10-Dec-199710-Dec-2017"AN IMPROVED VANED ROTOR"TERM EXPIRED
13 2840/MAS/1997 228495 10-Dec-199710-Dec-2017A PROCESS FOR PREPARING MIXTURES OF MONOOLEFINIC C5 MONONITRILESTERM EXPIRED
14 3563/DEL/1997 237016 10-Dec-199710-Dec-2017"DRY CELL AND METHOD OF MANUFACTURING OUTER METAL JACKET THEREOF"TERM EXPIRED
15 2329/CAL/1997 194784 09-Dec-199709-Dec-2017RING TRIP CIRCUITTERM EXPIRED
16 2325/CAL/1997 199448 09-Dec-199709-Dec-2017AN AUTOMATIC ACCIDENT PREVENTION DEVICE FOR ELECTRIC / DIESEL ENGINE DRIVEN RAILWAYSTERM EXPIRED
17 3540/DEL/1997 231832 09-Dec-199709-Dec-2017"AN ABSORBENT ARTICLE"TERM EXPIRED
18 2813/MAS/1997 183730 09-Dec-199709-Dec-2017"PROCESS FOR THE PREPARATION OF NOVEL FORM-4 OF TROGLITAZONE HAVING ENHANCED ANTI-DIABETIC ACTIVITY".TERM EXPIRED
19 2805/MAS/1997 183725 09-Dec-199709-Dec-2017PROCESS FOR THE PREPARATION OF NOVEL POLYMORPHIC FORM-4OF TROGLITAZON HAVING ENHANCED ANTI-DIABETIC ACTIVITY".TERM EXPIRED
20 2810/MAS/1997 183728 09-Dec-199709-Dec-2017"PROCESS FOR THE PREPARATION OF NOVEL FORM-2 OF TROGLITAZONE HAVING ENHANCED ANTI-DIABETIC ACTIVITY".TERM EXPIRED
       
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