US2903387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous webs and method for their production
Assignee: Akzo Nobel UK PLC
•
Filing: 1954-12-23
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Granted: 1959-09-08
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Wade Worth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:05
CPC Classifications
D; D01; D01G; D01G25/00; D04; D04H; D04H1/00; D04H1/40; D04H1/42; Y; Y10; Y10S; Y10S264/00; Y10S264/14; Y10T; Y10T428/00; Y10T428/26; Y10T428/268; Y10T428/31504; Y10T428/31826; Y10T442/00; Y10T442/60; Y10T442/601; Y10T442/602; Y10T442/608; Y10T442/609; Y10T442/61; Y10T442/659; Y10T442/671
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A METHOD FOR PRODUCING FIBROUS ELASTOMERIC PRODUCTS, THE STEPS WHICH COMPRISE EXTRUDING A FIBERFORMING LIQUID CONTAINING BETWEEN ABOUT 5% AND ABOUT 50% OF A FIBER-FORMING ELASTOMERIC MATERIAL AND A LATENT GAS-FORMING AGENT INTO A HIGH VELOCITY, NON-TURBULENT, UNI-DIRECTIONAL, UNCONFINED STREAM OF GAS TO FORM A MULTIPLICITY OF SOLID FIBERS, HEATING THE SOLID FIBERS TO A TEMPERATURE BELOW THE ACTIVATION TEMPERATURE OF THE GASFORMING AGENT FOR A SUFFICIENT PERIOD OF TIME SO AS TO FORM A PARTIALLY CURED SKIN ON THE SOLID FIBERS AND THEN HEATING THE PARATICALLY CURED, SOLID FIBERS TO A MORE ELEVATED TEMPERATURE TO ACTIVATE THE GAS-FORMING AGENT THEREBY CONVERTING THE PARTIALLY CURED, SOLID FIBERS TO SUBSTANTIALLY HOLLOW FIBERS.
Claim 2
Dependent Claim
112 words
IN A METHOD FOR PRODUCING FIBROUS ELASTOMERIC PRODUCTS, THE STEPS WHICH COMPRISE EXTRUDING A FIBERFORMING LIQUID CONTAINING BETWEEN ABOUT 5% AND ABOUT 50% OF A FIBER-FORMING ELASTOMERIC MATERIAL AND A LATENT GAS-FORMING AGENT INTO A HIGH VELOCITY, NON-TURBULENT, UNI-DIRECTIONAL, UNCONFINED STREAM OF GAS TO FORM A MULTIPLICITY OF SOLID FIBERS, HEATING THE SOLID FIBERS TO A TEMPERATURE BELOW THE ACTIVATION TEMPERATURE OF THE GASFORMING AGENT FOR A SUFFICIENT PERIOD OF TIME SO AS TO FORM A PARTIALLY CURED SKIN ON THE SOLID FIBERS AND THEN HEATING THE PARATICALLY CURED, SOLID FIBERS TO A MORE ELEVATED TEMPERATURE TO ACTIVATE THE GAS-FORMING AGENT THEREBY CONVERTING THE PARTIALLY CURED, SOLID FIBERS TO SUBSTANTIALLY HOLLOW FIBERS.
References Cited (Backward Citations)
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |