US2830932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'dibenzylethylene diamine salt of heparin
Assignee: Abbott Laboratories
•
Filing: 1952-12-06
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Granted: 1958-04-15
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Expires: 1972-12-06
Abstract
No abstract record available.
Inventors
- 👤 Ira B Cushing
- 👤 Edward J Kratovil
- 👤 Rose Anthony F De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:53
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0063; C08B37/0075
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |