Patent US3831605A successfully refreshed from Google Patents.
US2731679A
Expired / Lapsed
US
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Method of making nonwoven fabric
Assignee: Chicopee Manufacturing Corp
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Filing: 1952-06-03
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Granted: 1956-01-24
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Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 Heath O Kennette
- 👤 Charles H Plummer
- 👤 John J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:56
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD FOR FORMING AN ISOTROPIC FIBROUS WEB WHICH COMPRISES FEEDING A MASS OF FIBRES TO THE MAIN CYLINDER OF A CONVENTIONAL CARD; TRANSFERRING THE FIBERS FROM THE MAIN CYLINDER TO THE SURFACE OF A CONVENTIONAL DOFFER CYLINDER REVOLVING IN THE SAME ANGULAR DIRECTION AS THE MAIN CYLINDER AT A PERIPHERAL SPEED GREATER THAN THE PERIPHERAL SPEED OF THE MAIN CYLINDER, WHEREBY THE FIBERS ARE SUBSTANTIALLY INDIVIDUALIZED AND SEPARTED FROM EACH OTHER; PNEUMATICALLY DOFFING THE SEPARTED FIBERS FROM
Claim 2
Independent Claim
78 words
THE METHOD FOR FORMING AN ISOTROPIC FIBROUS WEB WHICH COMPRISES FEEDING A MASS OF FIBRES TO THE MAIN CYLINDER OF A CONVENTIONAL CARD; TRANSFERRING THE FIBERS FROM THE MAIN CYLINDER TO THE SURFACE OF A CONVENTIONAL DOFFER CYLINDER REVOLVING IN THE SAME ANGULAR DIRECTION AS THE MAIN CYLINDER AT A PERIPHERAL SPEED GREATER THAN THE PERIPHERAL SPEED OF THE MAIN CYLINDER, WHEREBY THE FIBERS ARE SUBSTANTIALLY INDIVIDUALIZED AND SEPARTED FROM EACH OTHER; PNEUMATICALLY DOFFING THE SEPARTED FIBERS FROM
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |