Crown Tech LLC
Records under this name other than the patents Crown Tech LLC 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 2 patents it holds.
Showing 1 to 7 of 7 · Back to Crown Tech LLC
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,448,211 | Composition and associated method for inhibiting stain formation on a ferrous metal surface Lapsed on the fee record Ended Sep 10, 2010 · From the USPTO record | Lapsed on the fee record | Ended Sep 10, 2010 | From the USPTO record |
| US 6,530,530 | Decorative fountain Lapsed on the fee record Ended Mar 11, 2007 · From the USPTO record | Lapsed on the fee record | Ended Mar 11, 2007 | From the USPTO record |
| US 6,525,010 | Composition and associated method for inhibiting stain formation on a ferrous metal surface Lapsed on the fee record Ended Feb 25, 2007 · From the USPTO record | Lapsed on the fee record | Ended Feb 25, 2007 | From the USPTO record |
| US 4,572,229 | Variable proportioner Term ended Term ended no later than Feb 25, 2006 · Low confidence | Term ended | Term ended no later than Feb 25, 2006 | Low confidence |
| US 5,384,064 | Hydrochloric acid pickling accelerator Term ended Term ended no later than Jan 24, 2015 · Low confidence | Term ended | Term ended no later than Jan 24, 2015 | Low confidence |
| US 5,433,240 | Low-ratio proportioner Term ended Term ended no later than Jul 18, 2015 · Low confidence | Term ended | Term ended no later than Jul 18, 2015 | Low confidence |
| US 5,821,212 | Rinse aid and process for stainless steel Term ended Term ended no later than Oct 13, 2018 · Low confidence | Term ended | Term ended no later than Oct 13, 2018 | Low confidence |