Allen Engineering Corp.
Records under this name other than the patents Allen Engineering Corp. 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 12 patents it holds.
Back to Allen Engineering Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,955,404 | Sequential remote dumping control for power buggies Term ended Term ended Mar 20, 2024 · From the USPTO record | Term ended | Term ended Mar 20, 2024 | From the USPTO record |
| US 9,068,300 | Riding trowel with CVT clutch module Lapsed on the fee record Ended Jun 30, 2023 · From the USPTO record | Lapsed on the fee record | Ended Jun 30, 2023 | From the USPTO record |
| US 6,582,153 | Edge guarded power riding trowel Term ended Term ended Jan 11, 2022 · From the USPTO record | Term ended | Term ended Jan 11, 2022 | From the USPTO record |
| US 7,316,523 | Acoustically matched method and apparatus for screeding concrete Lapsed on the fee record Ended Jan 8, 2020 · From the USPTO record | Lapsed on the fee record | Ended Jan 8, 2020 | From the USPTO record |
| US 6,089,786 | Dual rotor riding trowel with proportional electro-hydraulic steering Term ended Term ended Mar 29, 2019 · From the USPTO record | Term ended | Term ended Mar 29, 2019 | From the USPTO record |
| US 6,019,545 | Surface finishing machine with rotatable guard Term ended Term ended Dec 7, 2018 · From the USPTO record | Term ended | Term ended Dec 7, 2018 | From the USPTO record |
| US 6,048,130 | Hydraulically driven, multiple rotor riding trowel Term ended Term ended Nov 23, 2018 · From the USPTO record | Term ended | Term ended Nov 23, 2018 | From the USPTO record |
| US 7,114,876 | Acoustically matched concrete finishing pans Lapsed on the fee record Ended Oct 3, 2018 · From the USPTO record | Lapsed on the fee record | Ended Oct 3, 2018 | From the USPTO record |
| US 7,108,449 | Method and apparatus for acoustically matched slip form concrete application Lapsed on the fee record Ended Sep 19, 2018 · From the USPTO record | Lapsed on the fee record | Ended Sep 19, 2018 | From the USPTO record |
| US 6,106,193 | Hydraulically driven, multiple rotor riding trowel Term ended Term ended Jul 20, 2018 · From the USPTO record | Term ended | Term ended Jul 20, 2018 | From the USPTO record |