H.R. Smith (Technical Developments) Limited
Records under this name other than the patents H.R. Smith (Technical Developments) 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 1 patents it holds.
Showing 1 to 6 of 6 · Back to H.R. Smith (Technical Developments) Limited
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,657,120 | Lightning shelters Term ended Term ended Feb 12, 2023 · From the USPTO record | Term ended | Term ended Feb 12, 2023 | From the USPTO record |
| US 6,167,896 | Shelters Term ended Term ended Aug 12, 2018 · From the USPTO record | Term ended | Term ended Aug 12, 2018 | From the USPTO record |
| US 4,504,338 | Methods of producing composite foamed thermoplastic resin articles Term ended Term ended no later than Mar 12, 2005 · Low confidence | Term ended | Term ended no later than Mar 12, 2005 | Low confidence |
| US 5,057,175 | Method and apparatus for making continuous lengths of thermoplastic fiber reinforced laminates Term ended Term ended no later than Oct 15, 2011 · Low confidence | Term ended | Term ended no later than Oct 15, 2011 | Low confidence |
| US 5,542,624 | Lightning strike protection Term ended Term ended no later than Aug 6, 2016 · Low confidence | Term ended | Term ended no later than Aug 6, 2016 | Low confidence |
| US 5,570,265 | Static dischargers for aircraft Term ended Term ended no later than Oct 29, 2016 · Low confidence | Term ended | Term ended no later than Oct 29, 2016 | Low confidence |