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
1 376/BOM/1997 183716 25-Jun-199725-Jun-2017A PROCESS FOR PRODUCING A SYNERGISTIC MICROBIOCIDAL NON-ABRASIVE COMPOSITION.TERM EXPIRED
2 1216/CAL/1997 193633 25-Jun-199725-Jun-2017A LAMINATED SOLAR CELL MODULE WITH IMPROVED BACKSIN AND METHOD FOR ITS MANUFACTURETERM EXPIRED
3 1741/DEL/1997 214797 25-Jun-199725-Jun-2017 "A PROCESS FOR THE MANUFACTURE OF AN AQUEOUS POLYMER DISPERSION"TERM EXPIRED
4 1398/MAS/1997 234753 25-Jun-199725-Jun-2017GRANULATE FOR THE PREPARATION OF FAST-DISINTEGRATING AND FAST-DISSOLVING COMPOSITIONS TERM EXPIRED
5 1399/MAS/1997 198899 25-Jun-199725-Jun-2017DRAFT SILL AND WHEEL TRUCK CONNECTION TERM EXPIRED
6 1215/CAL/1997 193218 25-Jun-199725-Jun-2017A RECLOSING COVER FOR A RECEPTACLE FITTED WITH A FRANGIBLE CLOSINGTERM EXPIRED
7 1403/MAS/1997 207661 25-Jun-199725-Jun-2017A FINITE IMPULSE RESPONSE FILTER APPARATUSTERM EXPIRED
8 1732/DEL/1997 215069 25-Jun-199725-Jun-2017"A METHOD FOR THE MANUFACTURE OF A MEDICAL DEVICE"TERM EXPIRED
9 1397/MAS/1997 217238 25-Jun-199725-Jun-2017EXHAUST MUFFLERTERM EXPIRED
10 1740/DEL/1997 195277 25-Jun-199725-Jun-2017"METHOD AND APPARATUS FOR MITIGATING DISTORTION EFFECTS IN THE DETERMUNATION OF SIGNAL USABILITY"TERM EXPIRED
11 1396/MAS/1997 202081 25-Jun-199725-Jun-2017HEATING CABLETERM EXPIRED
12 1391/MAS/1997 198053 25-Jun-199725-Jun-2017MODIFIED CUT OFF VALVE ASSEMBLE IN C3W TYPE DISTRIBUTOR VALVE USED IN RAILWAYSAIR BRAKE SYSTEMSTERM EXPIRED
13 1725/DEL/1997 215634 24-Jun-199724-Jun-2017"NOVEL DRANING WALL AND METHOD FOR CONSTRUCTING IT"TERM EXPIRED
14 1724/DEL/1997 199680 24-Jun-199724-Jun-2017A DIGITAL ARBITRATION SYSTEM FOR SIGNING OF A DOCUMENT AND METHOD FOR THE SAME.TERM EXPIRED
15 1710/DEL/1997 193286 24-Jun-199724-Jun-2017"A COMPOSITION USEFUL FOR THE DETECTING CARBONDIOXIDE"TERM EXPIRED
16 1207/CAL/1997 193276 24-Jun-199724-Jun-2017A METHOD OF PROVIDING AN OVERLAY SHORT MESSAGING SERVICE IN A MOBILE SATELLITE COMMUNICATION SYSTEMTERM EXPIRED
17 1727/DEL/1997 215641 24-Jun-199724-Jun-2017"A BLISTER PACK, AN APPARATUS AND A METHOD FOR MANUFACTURING THE SAME".TERM EXPIRED
18 1700/DEL/1997 199678 24-Jun-199724-Jun-2017"CLOTHES TREATING APPARATUS FOR REFRESHING AND DEWRINKLING THE CLOTHES"TERM EXPIRED
19 1202/CAL/1997 193241 24-Jun-199724-Jun-2017SLIDING GATE VALVE FOR A VESSEL CONTAINING MOLTEN METALTERM EXPIRED
20 1701/DEL/1997 237062 24-Jun-199724-Jun-2017"A SOLID BLEACH PRECURSOR COMPOSITION"TERM EXPIRED
       
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