Patent US3350260A successfully refreshed from Google Patents.
US3350260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a configured fibrous web containing paper-making fibers and fibers of a heat-sealable material
Assignee: J R Crompton Ltd
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Filing: 1964-07-28
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Granted: 1967-10-31
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Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 Johnson Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
D; D21; D21F; D21F11/00; D21F11/008; D21F11/006; D21F11/02; D21F11/04; Y; Y10; Y10S; Y10S162/00; Y10S162/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN THE METHOD OF MANUFACTURING A FIBROUS WEB COMPRISING APPLYING A SUSPENSION OF PAPER-MAKING FIBRES AND FIBRES OF A HEAT SEALABLE MATERIAL OF A SHORTER LENGTH THAN THE LENGTH OF SAID PAPER-MAKING FIBRES ON TO A SUPPORTING SCREEN, RESTRICTING FLUID DRAINAGE THROUGH THE SCREEN SPACED LOCATIONS BY BLANKING OFF SELECTED AREAS OF SAID SCREEN, AND LAYING DOWN A WEB ON THE SCREEN FROM THE SUSPENSION SO THAT THE PAPER-MAKING FIBRES FORM A CONTINUOUS PAPER WEB WHILE THE HEAT SEALING FIBRES BEING SHORTER IN LENGTH THAN THE PAPER-MAKING FIBRES ARE LOCATED PREDOMINANTLY ALONG THE CONTINUOUS UNRESTRICTED AREAS OF THE SCREEN.
Claim 2
Dependent Claim
99 words
IN THE METHOD OF MANUFACTURING A FIBROUS WEB COMPRISING APPLYING A SUSPENSION OF PAPER-MAKING FIBRES AND FIBRES OF A HEAT SEALABLE MATERIAL OF A SHORTER LENGTH THAN THE LENGTH OF SAID PAPER-MAKING FIBRES ON TO A SUPPORTING SCREEN, RESTRICTING FLUID DRAINAGE THROUGH THE SCREEN SPACED LOCATIONS BY BLANKING OFF SELECTED AREAS OF SAID SCREEN, AND LAYING DOWN A WEB ON THE SCREEN FROM THE SUSPENSION SO THAT THE PAPER-MAKING FIBRES FORM A CONTINUOUS PAPER WEB WHILE THE HEAT SEALING FIBRES BEING SHORTER IN LENGTH THAN THE PAPER-MAKING FIBRES ARE LOCATED PREDOMINANTLY ALONG THE CONTINUOUS UNRESTRICTED AREAS OF THE SCREEN.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |