Filter Cigarettes
Patent No. US3224453 (titled "Filter Cigarettes") was filed by Celanese on Apr 8, 1963. The application was issued on Dec 21, 1965.
How does this patent fit in bigger picture?
Technical Landscape
In the late 1950s when '453 was filed, cigarette filter production was at a time when manual or semi-automated processes were common. Manufacturing equipment commonly relied on mechanical linkages and controls rather than electronic automation. Hardware constraints made high-speed, precision alignment and material handling non-trivial.
Prosecution Position
The disclosed invention represents a meaningful technical advancement by providing a mechanism for improved filter rod production. The technical problem addressed is the efficient and precise formation of cigarette filter rods. The structural solution involves a novel arrangement of components to compress and shape filter material. The technical effect achieved is a more uniform and consistent filter rod, potentially increasing production speed and reducing material waste.
Claims
This patent contains zero claims, so there are no independent or dependent claims to analyze.
Patent Summary
Patent Family
File Wrapper
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US3224453
- Application Number
- US27105763
- Filing Date
- Apr 8, 1963
- Publication Date
- Dec 21, 1965
- External Links
- Slate, USPTO, Google Patents