UST859005I4 - Defensive publication - Google Patents

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Publication number
UST859005I4
UST859005I4 US859005DH UST859005I4 US T859005 I4 UST859005 I4 US T859005I4 US 859005D H US859005D H US 859005DH US T859005 I4 UST859005 I4 US T859005I4
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US
United States
Prior art keywords
defensive publication
tobacco smoke
published
application
defensive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of UST859005I4 publication Critical patent/UST859005I4/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Definitions

  • Tobacco smoke filter elements containing particles of anhydrated and/or hydrated magnesium sulfate for removing at least 50 percent of the total particulate matter contained in an effluent stream of tobacco smoke from a cigarette. A majority of the particles have a size of about 2.0 microns and the filter will selectively remove more nicotine than tar from the tobacco smoke.

Description

l 259 (13S DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, S49 O.G. 1221. Identification is by serial number of the application and the heading indicates the number of pages of specification, including claims. and of sheets of drawing contained in the application as originally tiled. The file of this application is available to the public for'inspection; reproduction may be purchased for :30 cents per sheet.
Applications published under the Defensive Publication Program have not been examined as to the merits of alleged invention. The Patent Omce makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED FEBRUARY 1, 1969 683,817 ADDITIVE CONTAINING TOBACCO SMOKE FILTER John R. Hatfield, Jr., and Kyle E. Morrison, both of R0. Box 511, Kingsport, Tenn. 37662 Filed Nov. 17, 1967. Published Feb. 4, 1969 Class 131-266 No Drawing. 14 Pages Specification Tobacco smoke filter elements containing particles of anhydrated and/or hydrated magnesium sulfate for removing at least 50 percent of the total particulate matter contained in an effluent stream of tobacco smoke from a cigarette. A majority of the particles have a size of about 2.0 microns and the filter will selectively remove more nicotine than tar from the tobacco smoke.
US859005D 1967-11-17 1967-11-17 Defensive publication Pending UST859005I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68381767A 1967-11-17 1967-11-17

Publications (1)

Publication Number Publication Date
UST859005I4 true UST859005I4 (en) 1969-02-04

Family

ID=24745563

Family Applications (1)

Application Number Title Priority Date Filing Date
US859005D Pending UST859005I4 (en) 1967-11-17 1967-11-17 Defensive publication

Country Status (1)

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US (1) UST859005I4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964426A (en) * 1988-09-28 1990-10-23 Eastman Kodak Company Tobacco smoke filters and process for production thereof
US5150723A (en) * 1988-09-28 1992-09-29 Eastman Kodak Company Process for the production of tobacco smoke filters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964426A (en) * 1988-09-28 1990-10-23 Eastman Kodak Company Tobacco smoke filters and process for production thereof
US5150723A (en) * 1988-09-28 1992-09-29 Eastman Kodak Company Process for the production of tobacco smoke filters

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