US3577516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of spray on bandage
Assignee: National Patent Development Corp
•
Filing: 1969-12-02
•
Granted: 1971-05-04
•
Expires: 1989-12-02
Abstract
Abstract A BANDAGE IS FORMED IN SITU ON A WOUND BY SPRAYING ON SEPARATELY OR SIMULTANEOUSLY A HYDROPHILIC WATER INSOLUBLE POLYMER AND A HIGH BOILING PLASTICIZER OR SOLVENT THEREFOR. PREFERABLY THE POLYMER IS A HYDROXY LOWER ALKYL ACRYLATE OR METHACRYLATE. MEDICALLY ACTIVE INGREDIENTS CAN BE INCLUDED IN THE COMPOSITION.
Inventors
- 👤 Francis E Gould
- 👤 Thomas H Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:18
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61F; A61F13/00; A61F13/00051; A61F13/00063; A61F13/01; A61F13/01008; A61L26/00; A61L26/0009; A61L26/0014; A61L26/0061; A61L26/0066; A61L26/0076; A61F2013/00089; A61F2013/00106; A61F2013/0011; A61F2013/00246; A61F2013/00263; A61F2013/00361; A61F2013/00855; A61F2013/00876; A61L2300/00; A61L2300/20; A61L2300/22; A61L2300/222; A61L2300/40; A61L2300/402; A61L2300/404; A61L2300/41; Y; Y10; Y10S; Y10S602/00; Y10S602/904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |