Patents
US 11946208 B2: Swing boom concrete screeding apparatus
- Granted
- 2024-04-02
- Filed
- 2023-05-24 application 18322962
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An apparatus for screeding concrete to produce a level finished surface includes a frame assembly having a front end and rear ends and a pair of spaced vertically oriented stabilization legs supporting a generally horizontal front member. An extendable boom assembly is provided having front and rear ends, and an exterior boom section pivotably secured to the frame assembly proximate said rear end. The extendable boom assembly is also adjustably mounted on said front member to allow generally lateral motion of the boom.
Source: PVGPATDIS, file of 2026-04-10 (ipg240402.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Ligchine International Corporation 15 patents | US company or organization | Floyds Knobs, IN | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter A. Ligman | Darien, WI | 16 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E01C | Construction of, or surfaces for, roads, sports grounds, or the like; machines or auxiliary tools for construction or repair | E01C19/405 | PVGPATDIS, file of 2026-04-10 |
| E04G | Scaffolding; forms; shuttering; building implements or aids, or their use; handling building materials on the site; repairing, breaking-up or other work on existing buildings | E04G21/10 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-08-17 | Assignment Assignment of assignor's interest | LIGMAN, PETER A. signed 2021-04-27 | LIGCHINE INTERNATIONAL CORPORATION FLOYDS KNOBS, IN | 64621/753 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.