US3823091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable emulsion of fluorocarbon particles
Assignee: Tanabe Pharma Corp
•
Filing: 1972-06-21
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Granted: 1974-07-09
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Expires: 1992-06-21
Abstract
Abstract A DISPERSSION CONTAINING 5-60 W./V PERCENT OF FLUOROCARBON, 0.2-5 W./V. PERCENT NONIONIC SURFACTANT (S) AND 2-20 W./V. PERCENT POLYALCOHOL (S) IS EMULSIFIED UNDER PRESSURE. A STABLE EMULSION OF FLUOROCARON PARTICLES HAVING A PARTICLE DIAMETER LESS THAN 0.2$ IS PRODUCED. THE EMULSION IS USEFUL AS AN ARTIFICAL BLOOD.
Inventors
- 👤 M Samejima
- 👤 I Sugimoto
- 👤 G Hirata
- 👤 G Tsukamoto
- 👤 A Suzuki
- 👤 Y Koida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0026; A61K31/00; A61K31/02; C; C09; C09K; C09K23/00; C09K23/42
Claims Analysis
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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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |