US2810645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making textile webs
Assignee: Akzo Nobel UK PLC
•
Filing: 1950-02-09
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Granted: 1957-10-22
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Expires: 1970-02-09
Abstract
No abstract record available.
Inventors
- 👤 Francis D Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/25; D21H17/26; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AS A NEW ARTICLE OF MANUFACTURE, A COHERENT STRONG, POROUS TEXTILE WEB CONSISTING OF A MULTIPLICITY OF RANDOMLY INTERMINGLED DISCONTINUOUS FIBERS ALL OF WHICH ARE EXTRUDED SYNTHETIC, ARTIFICIALLY FORMED, NON-FIBRILLATING ORGANIC FIBERS HAVING LENGTH OF FROM SEVEN-SIXTEENTHS OF AN INCH TO ONE INCH AND BONDED AT THEIR POINTS OF INTERSECTION INTO A WEB BY A WATER-INSOLUBLE, ALKALI-SOLUBLE HYDROXYETHYL CELLULOSE ESSENTIALLY ALL OF WHICH OCCURS IN THE WEB IN THE FORM OF DISCRETE PARTICLES OF LARGER THAN COLLOIDAL SIZE.
Claim 2
Dependent Claim
78 words
AS A NEW ARTICLE OF MANUFACTURE, A COHERENT STRONG, POROUS TEXTILE WEB CONSISTING OF A MULTIPLICITY OF RANDOMLY INTERMINGLED DISCONTINUOUS FIBERS ALL OF WHICH ARE EXTRUDED SYNTHETIC, ARTIFICIALLY FORMED, NON-FIBRILLATING ORGANIC FIBERS HAVING LENGTH OF FROM SEVEN-SIXTEENTHS OF AN INCH TO ONE INCH AND BONDED AT THEIR POINTS OF INTERSECTION INTO A WEB BY A WATER-INSOLUBLE, ALKALI-SOLUBLE HYDROXYETHYL CELLULOSE ESSENTIALLY ALL OF WHICH OCCURS IN THE WEB IN THE FORM OF DISCRETE PARTICLES OF LARGER THAN COLLOIDAL SIZE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |