Expired Patents
Filter By Field of Invention & Filing Date
Filter expired patents by field of invention and filing date. This search runs on the official IP India online service and opens in a new tab.
Search Expired Patents| Sr.No | Application Number | Patent Number | Date Of Patent | Date of Expiry | Title Of Invention | Status |
|---|---|---|---|---|---|---|
| 1 | 2009CH001234 | 234567 | 15/04/2009 | 15/04/2029 | A novel process for preparation of pharmaceutical intermediates | Expired |
| 2 | 2010DE045678 | 312890 | 22/08/2010 | 22/08/2030 | System and method for secure data transmission in mobile networks | Expired |
| 3 | 2008MU056789 | 198765 | 10/03/2008 | 10/03/2028 | Improved composition for anti-corrosion coating | Expired |
| 4 | 2011KO012345 | 456123 | 05/11/2011 | 05/11/2031 | Apparatus for energy-efficient water purification | Expired |
| 5 | 2007DL078901 | 167890 | 18/06/2007 | 18/06/2027 | Method for producing high-strength composite materials | Expired |
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[dash]patent[at]nic[dot]in, mumbai[dash]patent[at]nic[dot]in, chennai[dash]patent[at]nic[dot]in, kolkata[dash]patent[at]nic[dot]in
