US3763858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite material having cementitious properties
Assignee: Johnson and Johnson
•
Filing: 1971-02-24
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Granted: 1973-10-09
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Expires: 1991-02-24
Abstract
Abstract A composite material, useful as a surgical, medical or orthopedic wrapping, is provided which will adhere or cohere to another surface or to itself by the application of moderate pressure either at room temperature or at an elevated temperature and will be substantially non-tacky to the touch until the application of such moderate pressure. The composite material comprises a cementitious core having bonded thereto a flexible, open cellular, resilient polymeric protective covering, the core having sufficient softness at the conditions of use to extend through the cells of the protective covering and become available at the outer surface thereof upon application of moderate pressure.
Inventors
- 👤 G Buese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:32
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/0203; A61F13/0206; A61F13/0209; A61F13/022; A61L15/07; A61L15/12; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249981; Y10T428/249982; Y10T428/249983; Y10T428/249984; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/28; Y10T428/2813; Y10T428/2817
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
21 words
The medical wrapping of claim 1 wherein the cementitious material has a William plasticity of about 0.4 to about 8.0 mm.
Claim 2
Dependent Claim
14 words
The medical wrapping of claim 2 wherein the foam layer is a polyurethane foam.
Claim 3
Dependent Claim
25 words
The medical wrapping of claim 2 wherein the foam is reticulated and has a pore density of about 20 to about 120 pores per inch.
Claim 4
Dependent Claim
14 words
The medical wrapping of claim 2 wherein the cementitious material comprises a pressure-sensitive adhesive.
Claim 5
Dependent Claim
14 words
The medical wrapping of claim 2 wherein the cementitious material comprises a thermoplastic polymer.
Claim 6
Dependent Claim
12 words
The medical wrapping of claim 6 wherein the cementitious material comprises polycaprolactone.
Claim 7
Dependent Claim
12 words
The medical wrapping of claim 6 wherein the cementitious material comprises trans-1,4-polyisoprene.
Claim 8
Dependent Claim
12 words
The medical wrapping of claim 6 wherein the cementitious material comprises polychloroprene.
Claim 9
Dependent Claim
14 words
The medical wrapping of claim 2 wherein the cementitious material has a porous structure.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |