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US2461505A
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Removal or replacement of electrolytes in physiologically active materials
Assignee: Sun Chemical Corp
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Filing: 1944-12-02
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Granted: 1949-02-15
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Expires: 1964-12-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick K Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:47
CPC Classifications
C; C07; C07K; C07K16/00; C07K16/06; Y; Y10; Y10S; Y10S530/00; Y10S530/82; Y10S530/825; Y10S530/827; Y10S530/829; Y10S530/83
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2074493A
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US2275210A
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US2364639A
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US2368926A
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US2366650A
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US2368464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |