US2979433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reshaping fibrous filter rods
Assignee: Akzo Nobel UK PLC
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Filing: 1956-03-09
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Granted: 1961-04-11
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Expires: 1976-03-09
Abstract
No abstract record available.
Inventors
- 👤 Machenry Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:46
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0204; A24D3/0212; A24D3/022; Y; Y10; Y10S; Y10S264/00; Y10S264/75; Y10S55/00; Y10S55/05; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE METHOD OF MAKING A FIBROUS ROD HAVING THE FORM OF A CIRCULAR CYLINDER COMPRISING FORMING A LOOSE SILVER OF NON-ADHESIVE AND POTENTIALLY ADHESIVE FIBERS, ACTIVATING THE POTENTIALLY ADHESIVE FIBERS, COMPRESSING THE SILVER INTO CIRCULAR CYLINDER CONFIGURATION TO BRING THE FIBERS INTO INTIMATE CONTACT WITH ONE ANOTHER WHEREBY AT LEAST SOME OF THE POTENTIALLY ADHESIVE FIBERS ADHERE TO AT LEAST SOME OF THE NON-ADHESIVE FIBERS AND FORM A RELATIVELY STIFF ROD OF FIBERS, WINDING THE ROD INTO A PACKAGE WHEREBY THE ROD IS DEFORMED FROM ITS CIRCULAR CYLINDER CONFIGURATIONS, UNWINDING THE DEFORMED ROD, SUBJECTING THE UNWOUND ROD TO THE ACTION OF STEAM TO SOFTEN THE FIBERS, AND DRAWING THE ROD WHILE THE FIBERS ARE STILL SOFTENED THROUGH A DIE TO RESTORE THE CIRCULAR CYLINDER CONFIGURATION.
Claim 2
Independent Claim
125 words
THE METHOD OF MAKING A FIBROUS ROD HAVING THE FORM OF A CIRCULAR CYLINDER COMPRISING FORMING A LOOSE SILVER OF NON-ADHESIVE AND POTENTIALLY ADHESIVE FIBERS, ACTIVATING THE POTENTIALLY ADHESIVE FIBERS, COMPRESSING THE SILVER INTO CIRCULAR CYLINDER CONFIGURATION TO BRING THE FIBERS INTO INTIMATE CONTACT WITH ONE ANOTHER WHEREBY AT LEAST SOME OF THE POTENTIALLY ADHESIVE FIBERS ADHERE TO AT LEAST SOME OF THE NON-ADHESIVE FIBERS AND FORM A RELATIVELY STIFF ROD OF FIBERS, WINDING THE ROD INTO A PACKAGE WHEREBY THE ROD IS DEFORMED FROM ITS CIRCULAR CYLINDER CONFIGURATIONS, UNWINDING THE DEFORMED ROD, SUBJECTING THE UNWOUND ROD TO THE ACTION OF STEAM TO SOFTEN THE FIBERS, AND DRAWING THE ROD WHILE THE FIBERS ARE STILL SOFTENED THROUGH A DIE TO RESTORE THE CIRCULAR CYLINDER CONFIGURATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |