Patent US3371012A successfully refreshed from Google Patents.
US3371012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservative for eye graft material
Assignee: Seikagaku Corp
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Filing: 1965-07-20
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Granted: 1968-02-27
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Expires: 1985-07-20
Abstract
No abstract record available.
Inventors
- 👤 Tamotsu Furuhashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:05
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/32; A61K9/00; A61K9/0012; A61K9/0048; C; C08; C08B; C08B37/00; C08B37/006; C08B37/0063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2841578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |