US3837338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conformable nonwoven bandage
Assignee: Kendall Co
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Filing: 1972-11-24
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Granted: 1974-09-24
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Expires: 1992-11-24
Abstract
Abstract A felted cellulosic nonwoven fabric, in which the fibers have substantial freedom of movement relative to each other, is mechanically compacted into a series of undulations, to yield a bandage material that does not decrease in width when elongated by 10% or more.
Inventors
- 👤 S Chesky
- 👤 D Patience
- 👤 E Hartigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:57
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/01; A61F13/01008; D; D04; D04H; D04H1/00; D04H1/70; D04H1/76; A61F2013/00089; A61F2013/00102; A61F2013/00119; A61F2013/00361; A61F2013/00727; A61F2013/00731; A61F2013/00744; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/27; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
A conformable nonwoven bandage material which comprises: a strip of felt-like nonwoven fabric characterized by the property of displaying substantially no decrease in width where elongated by 10% comprising cellulosic fibers held together principally by frictional engagement derived fron kinks, bends, twists, and curls induced into said fibers, said fabric being arranged in a repeating series of wave-like undulations substantially throughout its length, said undulations running across the width of said strip, and said undulations comprising a set of high density, compacted transverse ribs marking the peaks and valleys of said undulations, the side slopes of said undulations comprising areas of lower fiber density and greater extensibility than the fibers in said ribs.
Claim 2
Dependent Claim
113 words
A conformable nonwoven bandage material which comprises: a strip of felt-like nonwoven fabric characterized by the property of displaying substantially no decrease in width where elongated by 10% comprising cellulosic fibers held together principally by frictional engagement derived fron kinks, bends, twists, and curls induced into said fibers, said fabric being arranged in a repeating series of wave-like undulations substantially throughout its length, said undulations running across the width of said strip, and said undulations comprising a set of high density, compacted transverse ribs marking the peaks and valleys of said undulations, the side slopes of said undulations comprising areas of lower fiber density and greater extensibility than the fibers in said ribs.
Claim 3
Dependent Claim
27 words
The bandage material of claim 1 characterized by a weight of between 50 and 80 grams per square yard and between 11 and 14 undulations per inch.
Claim 4
Dependent Claim
16 words
The bandage material of claim 1 characterized by an elongation at break of at least 50%.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |