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FR1335660A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to gas filters, and processes for sterilizing gas by filtration

Assignee: Pfizer Inc
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Filing: 1962-07-13
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Granted: 1963-08-23
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Expires: 1982-07-13
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-04 14:14
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/30; C; C12; C12M; C12M37/00; C12M37/02

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