Patent US3180785A successfully refreshed from Google Patents.
US3180785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic fibers with increased surface friction
Assignee: Kendall Co
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Filing: 1962-03-21
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Granted: 1965-04-27
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Thompson Hugh Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:04
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/04; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2978
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A NON-WOVEN ARRAY CONSISTING OF AT LEAST IN PART OF ESSENTIALLY UNRETARACTED AND UNFUSED SYNTHETIC FIBERS, SAID FIBERS HAVING ROUGH AND IRREGULAR SURFACES CHARACTERIZED BY THE ADHERENT INCLUSION ON SAID SURFACES OF IRREGULARLY DISTRIBUTED FLAT PRISMATIC CRYSTALS OF FIBER SUBSTANCE OF A LOWER DEGREE OF POLYMERIZATON THAN THE MAIN BODY OF SAID FIBER SUBSTANCE.
Claim 2
Dependent Claim
54 words
A NON-WOVEN ARRAY CONSISTING OF AT LEAST IN PART OF ESSENTIALLY UNRETARACTED AND UNFUSED SYNTHETIC FIBERS, SAID FIBERS HAVING ROUGH AND IRREGULAR SURFACES CHARACTERIZED BY THE ADHERENT INCLUSION ON SAID SURFACES OF IRREGULARLY DISTRIBUTED FLAT PRISMATIC CRYSTALS OF FIBER SUBSTANCE OF A LOWER DEGREE OF POLYMERIZATON THAN THE MAIN BODY OF SAID FIBER SUBSTANCE.
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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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |