Patent US3975516A successfully refreshed from Google Patents.
US3975516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of treating cellular tissue
Assignee: Individual
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Filing: 1972-06-05
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Granted: 1976-08-17
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Expires: 1992-06-05
Abstract
Abstract A process is provided for encasement and infiltration of cellular tissue to reduce the influx of oxygen and liquid thereto and to retain in situ and retard efflux of liquids and medication therefrom by introducing into said tissue a gel substantially insoluble in said tissue and the body fluids associated therewith.
Inventors
- 👤 William P. Hettinger, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:46
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61K31/00; A61K31/74; A61K31/785; A61K47/00; A61K47/30; A61K47/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A process for encasement and infiltration of animal cellular tissue to reduce the influx of oxygen nutrients, amino acids and liquids thereto, to reduce the efflux of liquids therefrom and to retain in situ and retard efflux of liquids and therapeutic agents and to block capillary and extra cellular plasma flow, comprising the steps of introducing into said animal tissue an effective amount of a polyacrylamide gel substantially insoluble in said animal tissue and body fluids associated therewith.
Claim 2
Dependent Claim
78 words
A process for encasement and infiltration of animal cellular tissue to reduce the influx of oxygen nutrients, amino acids and liquids thereto, to reduce the efflux of liquids therefrom and to retain in situ and retard efflux of liquids and therapeutic agents and to block capillary and extra cellular plasma flow, comprising the steps of introducing into said animal tissue an effective amount of a polyacrylamide gel substantially insoluble in said animal tissue and body fluids associated therewith.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |