Patent · US Active

Insulated heat source

US10779569B2 · kind B2 · utility

0Cited by

13References

21Claims

0Family size

Assignee

Philip Morris Products S.A. · CH

Inventors

Stephane Roudier · Neuchâtel, CH
Samuel Bonnely · Yverdon-les-Bains, CH

Key dates

Filing date	Aug 29, 2013
Grant date	Sep 22, 2020
Priority date	—
Expiry date	May 22, 2034

Classification

Technology area (CPC A)Human Necessities
CPC primaryA24F42/00
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

There is provided a heat source for a smoking article, including an upstream end and an opposed downstream end, and further including a combustible carbonaceous core and an integral, non-combustible, thermally insulating, peripheral layer. The core extends from the upstream end of the heat source the downstream end of the heat source. The peripheral layer extends from the upstream end of the heat source only part way along the length of the heat source and circumscribes an upstream portion of the core.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.