Patent US3527776A successfully refreshed from Google Patents.
US3527776A
Expired / Lapsed
US
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Optical resolution of dl-lysine
Assignee: Ajinomoto Co Inc
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Filing: 1967-08-23
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Granted: 1970-09-08
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Expires: 1987-08-23
Abstract
No abstract record available.
Inventors
- 👤 Teruo Uzuki
- 👤 Naotake Sato
- 👤 Takekazu Akashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:20
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/28; C07C309/44; C07C229/00; C07C229/02; C07C229/04; C07C229/26; C07C309/33; C07C309/34; C07C309/35; C07B; C07B2200/00; C07B2200/07; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3431295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |