US2980982A
Expired / Lapsed
US
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Fibrous article
Assignee: Dow Chemical Co
•
Filing: 1958-02-06
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Granted: 1961-04-25
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Expires: 1978-02-06
Abstract
No abstract record available.
Inventors
- 👤 John E Costa
- 👤 Boeuf Edgar W Le
- 👤 Lloyd E Lefevre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:09
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; D01G; D01G99/00; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A CONTINUOUS, COHERENT, FIBROUS ARTICLE PRODUCED FROM AN ORIENTED FILM COMPOSED ESSENTIALLY OF A NORMALLY CRYSTALLINE POLYMER, SAID ARTICLE BEING A LONGITUDINALLY FIBRILLATED FIBROUS WEB, THE FIBROID SEGMENTS FORMING SAID WEB BEING IN RANDOM COHERENT ASSOCIATION.
Claim 2
Dependent Claim
36 words
A CONTINUOUS, COHERENT, FIBROUS ARTICLE PRODUCED FROM AN ORIENTED FILM COMPOSED ESSENTIALLY OF A NORMALLY CRYSTALLINE POLYMER, SAID ARTICLE BEING A LONGITUDINALLY FIBRILLATED FIBROUS WEB, THE FIBROID SEGMENTS FORMING SAID WEB BEING IN RANDOM COHERENT ASSOCIATION.
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) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |