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
1 616/MAS/1997 208301 24-Mar-199724-Mar-2017ALKALINE PRIMARY CELLTERM EXPIRED
2 613/MAS/1997 196434 24-Mar-199724-Mar-2017A SHIELDING DEVICE AND A SCREENING APPARATUS COMPRISING THE SAMETERM EXPIRED
3 614/MAS/1997 206811 24-Mar-199724-Mar-2017A FLASHLIGHTTERM EXPIRED
4 604/MAS/1997 197916 21-Mar-199721-Mar-2017ASPINNING FRAMETERM EXPIRED
5 598/MAS/1997 196365 21-Mar-199721-Mar-2017A COMMUNICATION SYSTEM AN INCOMING CALL CONTROL SYSTEM AND AN INCOMING CALL NOTIFYING DEVICE OF A PORTABLE COMMUNICATION TERMINALTERM EXPIRED
6 602/MAS/1997 196449 21-Mar-199721-Mar-2017A PROCESS FOR PREPARING PRECIPITATED SILICASTERM EXPIRED
7 605/MAS/1997 198696 21-Mar-199721-Mar-2017A PUSH BUTTON ASSEMBLY AND A POLYPHASE ELECTRICITY METERTERM EXPIRED
8 719/DEL/1997 232558 21-Mar-199721-Mar-2017"RECORDING MEDIUM AND AN OPTICAL DISK APPARATUS"TERM EXPIRED
9 721/DEL/1997 215565 21-Mar-199721-Mar-2017"LOAD CELL"TERM EXPIRED
10 519/CAL/1997 184998 21-Mar-199721-Mar-2017A PROCESS FOR THE DIRECT REDUCTION OF IRON OXIDE-CONTAINING MATERIALS WITH SOLIF CARBONACEOUS REDUCING AGENTSTERM EXPIRED
11 507/CAL/1997 187337 21-Mar-199721-Mar-2017A PROCESS FOR PREPARING AN ENCAPSULATED EXTENDED RELEASE FORMULATION OF VENLAFAXINE HYDROCHLORIDETERM EXPIRED
12 716/DEL/1997 199557 20-Mar-199720-Mar-2017"MECHANICAL FACE SEAL"TERM EXPIRED
13 588/MAS/1997 206503 20-Mar-199720-Mar-2017A METHOD FOR TRANSMITTING A SPEECH, AUDIO OR VIDEO SIGNAL AS PACKETS OF A PACKET NETWORKTERM EXPIRED
14 596/MAS/1997 198112 20-Mar-199720-Mar-2017VEHICLE PARKING SYSTEMTERM EXPIRED
15 595/MAS/1997 198390 20-Mar-199720-Mar-2017A PROCESS AND A PLANT FOR THE CONTINUOUS CASTING OF METALSTERM EXPIRED
16 715/DEL/1997 232559 20-Mar-199720-Mar-2017"A SYSTEM FOR REMOTELY RETRIEVING SUBSCRIBER DATA FROM A SUBSCRIBER IDENTITY MODULE CARD"TERM EXPIRED
17 591/MAS/1997 194865 20-Mar-199720-Mar-2017A POWER BREAKERTERM EXPIRED
18 589/MAS/1997 197992 20-Mar-199720-Mar-2017MONOLITHIC ACCELEROMETRIC TRANSDUCERTERM EXPIRED
19 712/DEL/1997 232549 20-Mar-199720-Mar-2017"AN INVERTER CIRCUIT WITH A SILICON CONTROLLED RECTIFIER FULL-BRIDGE CIRCUIT"TERM EXPIRED
20 711/DEL/1997 214601 20-Mar-199720-Mar-2017"A TWO SYSTEM INTERLOCK TYPE VEHICLE BRAKE SYSTEM FOR A BAR HANDLE VEHICLE"TERM EXPIRED
       
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