Patent US2983627A successfully refreshed from Google Patents.
US2983627A
Expired / Lapsed
US
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Methods of making webs of fibrous material
Assignee: Portals Ltd
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Filing: 1957-08-22
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Granted: 1961-05-09
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Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Williams Harold Malcolm Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; D; D21; D21H; D21H13/00; D21H13/10; D21H13/20; D21H13/26; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/2811; Y10T442/2861; Y10T442/2893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A METHOD OF MAKING A WEB OF FIBROUS MATERIAL HAVING A HIGH FLEXIBILITY AND TEAR STRENGTH AND CONTAINING SYNTHETIC FIBRES, WHICH METHOD COMPRISES IMPREGNATING THE FIBRES AFTER THE FORMATION OF THE WEB WITH A SOLUTION OF A METHYL METHOXY DERIVATIVE OF NYLON, REMOVING ANY EXCESS OF THE SOLUTION AND SUBSEQUENTLY DRYING THE WEB.
Claim 2
Independent Claim
53 words
A METHOD OF MAKING A WEB OF FIBROUS MATERIAL HAVING A HIGH FLEXIBILITY AND TEAR STRENGTH AND CONTAINING SYNTHETIC FIBRES, WHICH METHOD COMPRISES IMPREGNATING THE FIBRES AFTER THE FORMATION OF THE WEB WITH A SOLUTION OF A METHYL METHOXY DERIVATIVE OF NYLON, REMOVING ANY EXCESS OF THE SOLUTION AND SUBSEQUENTLY DRYING THE WEB.
References Cited (Backward Citations)
US2357392A
Cited
US2581069A
Cited
US2496665A
Cited
GB708622A
Cited
US2714097A
Cited
GB715932A
Cited
US2816851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |