Construction Forms, Inc.
Records under this name other than the patents Construction Forms, Inc. 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.
Back to Construction Forms, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,871,832 | Fiberglass, Reinforced Concrete Hose Shut-Off Valve Term ended Term ended Feb 10, 2023 · High confidence | Term ended | Term ended Feb 10, 2023 | High confidence |
| US 6,913,041 | Tapered Boom Hose Term ended Term ended Oct 15, 2022 · High confidence | Term ended | Term ended Oct 15, 2022 | High confidence |
| US 6,766,570 | Coupling Units Connecting Tubular Members Having a Hardened Inner Wall for Carrying Mechanically Abrasive Fluid Concrete Term ended Term ended Mar 1, 2020 · Medium confidence | Term ended | Term ended Mar 1, 2020 | Medium confidence |
| US 6,375,228 | Coupling units connecting tubular members having a hardened inner wall for carrying mechanically abrasive fluid concrete Term ended Term ended Mar 25, 2019 · From the USPTO record | Term ended | Term ended Mar 25, 2019 | From the USPTO record |
| US 6,467,812 | Pipe having replaceable wear resistant lined coupler Term ended Term ended Jun 6, 2017 · From the USPTO record | Term ended | Term ended Jun 6, 2017 | From the USPTO record |
| US 6,817,591 | Concrete hose shut-off valve Lapsed on the fee record Ended Nov 16, 2016 · From the USPTO record | Lapsed on the fee record | Ended Nov 16, 2016 | From the USPTO record |
| US 6,758,500 | Flared ends conduit coupling Lapsed on the fee record Ended Jul 6, 2008 · From the USPTO record | Lapsed on the fee record | Ended Jul 6, 2008 | From the USPTO record |
| US 3,967,837 | High pressure coupling apparatus Term ended Term ended no later than Jul 6, 1996 · Low confidence | Term ended | Term ended no later than Jul 6, 1996 | Low confidence |
| US 4,305,607 | Concrete pumping swivel coupling apparatus Term ended Term ended no later than Dec 15, 2001 · Low confidence | Term ended | Term ended no later than Dec 15, 2001 | Low confidence |
| US 4,311,248 | High pressure coupling apparatus Term ended Term ended no later than Jan 19, 2002 · Low confidence | Term ended | Term ended no later than Jan 19, 2002 | Low confidence |