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 2295/DEL/1997 215316 14-Aug-199714-Aug-2017"PROCESS FOR THE PRODUCTION OF RIGID POLYURETHANE FOAMS"TERM EXPIRED
2 2303/DEL/1997 217383 14-Aug-199714-Aug-2017"HANDLEBAR FOR TWO OR THREE-WHEEL VEHICLES"TERM EXPIRED
3 2306/DEL/1997 220120 14-Aug-199714-Aug-2017"A BOOM FOR USE WITH A CRANE"TERM EXPIRED
4 2300/DEL/1997 242370 14-Aug-199714-Aug-2017"AN EARPHONE"TERM EXPIRED
5 2298/DEL/1997 212566 14-Aug-199714-Aug-2017"A PROCESS FOR THE PREPARTION OF N-[(1-NBUTYL-4-PIPERIDYL)METHYL]-3,4-DIHYDRO-2H-[1,3]OXAZINO[3,2-A]INDOLE-10 CAROBAMIDE"TERM EXPIRED
6 1505/CAL/1997 211685 14-Aug-199714-Aug-2017MEDICINAL COMPOSITION COMPRISING OXIDIZED AND REDUCED FORM OF COENZYME Q10.TERM EXPIRED
7 2304/DEL/1997 227332 14-Aug-199714-Aug-2017AN IMPROVED BOOM FOR USE WITH A CRANE TERM EXPIRED
8 1803/MAS/1997 228476 13-Aug-199713-Aug-2017A PROCESS FOR THE CONVERSION OF LUTEIN OR OF ITS ESTERS INTO ZEAXANTHINTERM EXPIRED
9 2278/DEL/1997 215186 13-Aug-199713-Aug-2017"A RADIATION SOURCE"TERM EXPIRED
10 66/DEL/2005 243527 13-Aug-199713-Aug-2017"AN IMPROVED RADIATION SOURCE DEVICE"TERM EXPIRED
11 2276/DEL/1997 260141 13-Aug-199713-Aug-2017A METHOD FOR ENABLING PRIVATE RADIO SYSTEM AND SYSTEM THEREOFTERM EXPIRED
12 2273/DEL/1997 232870 13-Aug-199713-Aug-2017"A REMOTE STATION"TERM EXPIRED
13 2277/DEL/1997 232049 13-Aug-199713-Aug-2017"A MULTI-MODE MOBILE STATION"TERM EXPIRED
14 1964/DEL/2005 238186 13-Aug-199713-Aug-2017"A PRIVATE RADIO SYSTEM"TERM EXPIRED
15 2268/DEL/1997 232132 13-Aug-199713-Aug-2017A DEVICE USEFUL AS A CONCRETE BLOCKMAKERTERM EXPIRED
16 2267/DEL/1997 214901 13-Aug-199713-Aug-2017"AN IMPROVED PROCESS FOR THE PREPARATION OF CERAMIC MATRIX COMPOSITES SUCH AS A12O3-SICWAB COMPOSITE"TERM EXPIRED
17 1791/MAS/1997 229144 12-Aug-199712-Aug-2017A METHOD FOR IMMORTALIZING PRIMARY AVIAN-DERIVED CELLSTERM EXPIRED
18 1485/CAL/1997 193514 12-Aug-199712-Aug-2017PROCESS AND APPARATUS FOR TREATMENT OF FEEDWATER BY HIGH EFFICIENCY REVERSE OSMOSIS OPERATION WITH MEMBRANE SEPARATION EQUIPMENTTERM EXPIRED
19 2258/DEL/1997 215584 12-Aug-199712-Aug-2017"A PROCESS FOR SEPARATING AN OXIDATION REACTION PRODUCT AND AN OXIDATION CATALYST"TERM EXPIRED
20 1799/MAS/1997 223531 12-Aug-199712-Aug-2017NOVEL THROMBIN INHIBITORSTERM EXPIRED
       
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