Patents
US 11718998 B2: Stair stringer
- Granted
- 2023-08-08
- Filed
- 2021-08-18 application 17405895
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A stair stringer may include a body. The body may include a horizontal arm, a center angled portion coupled to the horizontal arm, and a vertical arm coupled to the center angled portion. The stair stringer may also include a first appendage coupled to a first edge of the horizontal arm, a second appendage coupled to a second edge of the horizontal arm, a third appendage coupled to a third edge of the vertical arm, and a fourth appendage coupled to a fourth edge of the vertical arm. The fourth edge may be adjacent the third edge. The first appendage, the second appendage, and the third appendage are parallel with respect to one another. A stairway system may include a first stair stringer and a second stair stringer. The second stair stringer may be an architectural chiral with respect to the first stair stringer.
Source: PVGPATDIS, file of 2026-04-10 (ipg230808.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| MIRO Industries, Inc. 8 patents | US company or organization | Heber, UT | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jason Reed Haddock | Heber, UT | 7 | PVGPATDIS, file of 2026-04-10 | |
| Jarrett Alan Welch | Park City, UT | 3 | PVGPATDIS, file of 2026-04-10 | |
| John Nathan Post | Heber, UT | 5 | PVGPATDIS, file of 2026-04-10 | |
| Gary Kummer | Orem, UT | 3 | PVGPATDIS, file of 2026-04-10 | |
| Samuel Richard Robins | Heber, UT | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E04F | Finishing work on buildings, e.g. stairs, floors | E04F11/025 | 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 |
|---|---|---|---|---|---|
| 2021-08-18 | Assignment Assignment of assignor's interest | HADDOCK, JASON REED signed 2021-08-17 KUMMER, GARY JR signed 2021-08-17 POST, JOHN NATHAN signed 2021-08-17 ROBINS, SAMUEL RICHARD signed 2021-08-17 WELCH, JARRETT ALAN signed 2021-08-17 | MIRO INDUSTRIES, INC. HEBER CITY, UT | 57220/62 | 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.