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US3425418A
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Artificial blood vessels and method of preparing the same
Assignee: Spofa Sdruzeni Podniku Pro Zdravotnickou Vyrobu
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Filing: 1964-04-15
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Granted: 1969-02-04
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Milos Chvapil
- 👤 Milan Krajicek
- 👤 Miloslav Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:42
CPC Classifications
A; A61; A61L; A61L33/00; A61L33/0005; A61L33/0011; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/062; A61L27/00; A61L27/14; A61L27/22; A61L27/24; A61L27/28; A61L27/34; A61L27/50; A61L27/507; A61L27/54; A61F2310/00; A61F2310/00005; A61F2310/00365; A61L2300/00; A61L2300/20; A61L2300/23; A61L2300/236; A61L2300/40; A61L2300/404; A61L2300/406; A61L2300/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |