Patents
US 12690704 B2: Paperboard container with sidewall features and method of manufacturing thereof
- Granted
- 2026-07-28
- Filed
- 2024-04-03 application 18625531
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A disposable paperboard container, and method for manufacturing the same, formed into a geometric shape having a bottom wall with a bottom transition segment about the periphery of the bottom wall leading to an upstanding sidewall extending to an upper rim, wherein an undulation of paperboard resides along the peripheral area of the lower portion of the sidewall to form a stepped lower sidewall, the stepped lower sidewall being joined to a smooth upper sidewall that extends upward tapered outward; wherein the stepped lower sidewall includes a first bend and a second bend of paperboard about the periphery of the lower sidewall and a transition segment between the first and second bend extends radially outward to form a rim about the peripheral area of the lower portion of the sidewall.
Source: PTBLXML, file of 2026-07-28 (ipgb20260728.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Dart Container Corporation 48 patents | US company or organization | Mason, MI | DART CONTAINER CORPORATION State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-07-28 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Robert William Rau | Dewitt, MI | PTBLXML, file of 2026-07-28 | ||
| Yogesh Manilal Shah | Wheeling, IL | PTBLXML, file of 2026-07-28 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A47G | Household or table equipment | A47G19/03 | PTBLXML, file of 2026-07-28 |
| B31B | Making containers of paper, cardboard or material worked in a manner analogous to paper | B31B50/592 | PTBLXML, file of 2026-07-28 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-10-13 | Assignment Assignment of assignor's interest | RAU, ROBERT WILLIAM signed 2023-04-20 SHAH, YOGESH MANILAL signed 2023-04-18 | DART CONTAINER CORPORATION MASON, MI | 72545/132 | PASDL, file of 2026-08-13 |
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.