CA799221A - Cigarette filters from polyoxymethylene foam - Google Patents

Cigarette filters from polyoxymethylene foam

Info

Publication number
CA799221A
CA799221A CA799221A CA799221DA CA799221A CA 799221 A CA799221 A CA 799221A CA 799221 A CA799221 A CA 799221A CA 799221D A CA799221D A CA 799221DA CA 799221 A CA799221 A CA 799221A
Authority
CA
Canada
Prior art keywords
cigarette filters
polyoxymethylene
foam
polyoxymethylene foam
cigarette
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.)
Expired
Application number
CA799221A
Inventor
Ii Ernest A. Coleman
Angus R. Blakey, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Publication date
Application granted granted Critical
Publication of CA799221A publication Critical patent/CA799221A/en
Expired legal-status Critical Current

Links

CA799221A Cigarette filters from polyoxymethylene foam Expired CA799221A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA799221T

Publications (1)

Publication Number Publication Date
CA799221A true CA799221A (en) 1968-11-19

Family

ID=36267231

Family Applications (1)

Application Number Title Priority Date Filing Date
CA799221A Expired CA799221A (en) Cigarette filters from polyoxymethylene foam

Country Status (1)

Country Link
CA (1) CA799221A (en)

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