Patent US3522346A successfully refreshed from Google Patents.
US3522346A
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Nonthrombogenic microcapsules
Assignee: Research Corp
•
Filing: 1968-05-31
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Granted: 1970-07-28
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Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas M S Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:16
CPC Classifications
C; C12; C12N; C12N11/00; C12N11/02; C12N11/04; A; A61; A61K; A61K51/00; A61K51/12; A61K51/1241; A61K51/1244; A61K51/1251; A61K9/00; A61K9/48; A61K9/50; A61K2121/00; Y; Y10; Y10S; Y10S436/00; Y10S436/829; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987; Y10T428/2989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2846057A
Cited
US3063904A
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US2989438A
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US3212498A
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US3436452A
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US3453194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |