US3737368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven wiping cloth
Assignee: Fiber Technology Corp
•
Filing: 1971-12-10
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Granted: 1973-06-05
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Expires: 1991-12-10
Abstract
Abstract A launderable nonwoven wiring cloth is formed by bonding, with heat and pressure, an intermingled array of cotton fibers, rayon fibers, and thermoplastic binder fibers, in a set of discrete and spaced-apart quadrilateral areas, the bonded areas forming a modulated diagonal line inclined at an angle of between 30* and 60* to a line normal to the machine direction axis of the fabric.
Inventors
- 👤 J Such
- 👤 A Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:38
CPC Classifications
B; B31; B31F; B31F5/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/541; D04H1/542; D04H1/544; B31F2201/00; B31F2201/07; B31F2201/0707; B31F2201/0715; B31F2201/0723; B31F2201/0733; B31F2201/0735; B31F2201/0784; B31F2201/0789; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24587; Y10T442/00; Y10T442/60; Y10T442/69; Y10T442/692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
The product according to claim 1 in which the viscose rayon fibers constitute between 20 percent and 50 percent by weight of the total fiber content; the cotton fibers between 30 percent and 50 percent; and the binder fibers between 15 percent and 30 percent.
Claim 2
Dependent Claim
13 words
The product according to claim 2 wherein the binder fibers are polypropylene fibers.
References Cited (Backward Citations)
US3542634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |