Patent US2158372A successfully refreshed from Google Patents.
Patent US3548052A successfully refreshed from Google Patents.
US3548052A
Expired / Lapsed
US
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Heparin compositions and methods of using same
Assignee: WAITAKI CANADA Ltd C/O OSLER HOSKIN & HARCOURT PO BOX 50 FIRST CANADIAN PLACE TORONTO ONTARIO CANADA M5X 1B8 A CANADIAN CORP
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Filing: 1968-01-18
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Granted: 1970-12-15
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Expires: 1988-01-18
Abstract
No abstract record available.
Inventors
- 👤 Teow Yan Koh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:02
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715; A61K47/00; A61K47/06; A61K47/20; A61K9/00; A61K9/48; A61K9/4841; A61K9/4858; A61K9/4891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |