Patent US3238852A successfully refreshed from Google Patents.
US3238852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making filters
Assignee: Olin Corp
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Filing: 1965-06-02
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Granted: 1966-03-08
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Expires: 1985-06-02
Abstract
No abstract record available.
Inventors
- 👤 Schur Milton Oscar
- 👤 James C Rickards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:31
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN THE MANUFACTURE OF A FILTER ROD FROM A WEB OF FIBROUS MATERIAL, THE PROCEDURE WHICH CONSISTS IN LONGITUDINALLY ADVANCING THE WEB, LACERATING THE WEB DURING ITS ADVANCEMENT TO FORM HAPHAZARD MUTILATION AND FIBER DISPLACEMENT WITHOUT DESTROYING THE TRANSVERSE CONTINUITY OF THE WEB, AND CONVERGING THE LACERATED WEB TO FORM A ROD-LIKE BUNDLE.
Claim 2
Dependent Claim
53 words
IN THE MANUFACTURE OF A FILTER ROD FROM A WEB OF FIBROUS MATERIAL, THE PROCEDURE WHICH CONSISTS IN LONGITUDINALLY ADVANCING THE WEB, LACERATING THE WEB DURING ITS ADVANCEMENT TO FORM HAPHAZARD MUTILATION AND FIBER DISPLACEMENT WITHOUT DESTROYING THE TRANSVERSE CONTINUITY OF THE WEB, AND CONVERGING THE LACERATED WEB TO FORM A ROD-LIKE BUNDLE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |