Patent US2804745A successfully refreshed from Google Patents.
US2804745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic yarn and method of making same
Assignee: Uniroyal Inc
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Filing: 1953-12-16
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Granted: 1957-09-03
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Expires: 1973-12-16
Abstract
No abstract record available.
Inventors
- 👤 Boutwell H Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:09
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/324
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A BALANCED SINGLE COVERED ELASTIC YARN OF THE TYPE DESCRIBED COMPRISING A RUBBER CORE HAVING A LOW TWIST, STRANDS OF THERMOPLASTIC TEXTILE MATERIALS WRAPPED THEREABOUT IN A DIRECTION OPPOSISTE TO THE DIRECTION OF CORE TWIST, SAID COVER AND SAID CORE HAVING APPROXIMATELY THE SAME NUMBER OF TURNS PER INCH, SAID COVER BEING HEAT-SET AND SHRUNK ON SAID CORE, SAID YARN HAVING AN EXTENSIBILITY OF AT LEAST 250%.
Claim 2
Dependent Claim
67 words
A BALANCED SINGLE COVERED ELASTIC YARN OF THE TYPE DESCRIBED COMPRISING A RUBBER CORE HAVING A LOW TWIST, STRANDS OF THERMOPLASTIC TEXTILE MATERIALS WRAPPED THEREABOUT IN A DIRECTION OPPOSISTE TO THE DIRECTION OF CORE TWIST, SAID COVER AND SAID CORE HAVING APPROXIMATELY THE SAME NUMBER OF TURNS PER INCH, SAID COVER BEING HEAT-SET AND SHRUNK ON SAID CORE, SAID YARN HAVING AN EXTENSIBILITY OF AT LEAST 250%.
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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |