US3467595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the separation of substances of different molecular sizes from a solution of said substances in a solvent
Assignee: Cytiva Sweden AB
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Filing: 1967-06-20
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Granted: 1969-09-16
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Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Arne O Sten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:26
CPC Classifications
A; A23; A23C; A23C9/00; A23C9/14; A23C9/148; B; B01; B01D; B01D15/00; B01D15/08; B01D15/26; B01D15/34; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/832; Y10S530/855; Y10S530/857; Y10S530/859
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3002823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |