Corpro Systems Limited
Records under this name other than the patents Corpro Systems Limited holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 4 patents it holds.
Showing 1 to 4 of 4 · Back to Corpro Systems Limited
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,657,018 | Circulating sub Lapsed on the fee record Ended Feb 25, 2026 · From the USPTO record | Lapsed on the fee record | Ended Feb 25, 2026 | From the USPTO record |
| US 7,600,580 | Sealed core sample barrel Lapsed on the fee record Ended Oct 13, 2017 · From the USPTO record | Lapsed on the fee record | Ended Oct 13, 2017 | From the USPTO record |
| US 6,712,158 | Apparatus and method for coring and/or drilling Lapsed on the fee record Ended Mar 30, 2016 · From the USPTO record | Lapsed on the fee record | Ended Mar 30, 2016 | From the USPTO record |
| US 6,425,447 | Apparatus for handling geological samples Lapsed on the fee record Ended Jul 30, 2014 · From the USPTO record | Lapsed on the fee record | Ended Jul 30, 2014 | From the USPTO record |