Patent US2094931A successfully refreshed from Google Patents.
US2094931A
Expired / Lapsed
US
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Process of separating extractive substances from body fluids
Assignee: Winthrop Chemical Co Inc
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Filing: 1933-12-21
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Granted: 1937-10-05
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Expires: 1953-12-21
Abstract
No abstract record available.
Inventors
- 👤 Schultze Hermann Eduard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:57
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/14; A61K35/16; A61K35/37; A61K35/407; Y; Y02; Y02A; Y02A50/00; Y02A50/30; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/104165; Y10T436/106664; Y10T436/107497; Y10T436/108331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-10-04 | 1941-04-05 | 1941-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-04 | 1945-04-05 | 1945-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-04 | 1949-04-05 | 1949-10-05 | $7700.00 | Window Closed / Lapsed |