US3463728A
Expired / Lapsed
US
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Dialysate capacity augmentation process
Assignee: United States Department of Health and Human Services
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Filing: 1967-04-28
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Granted: 1969-08-26
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Expires: 1987-04-28
Abstract
No abstract record available.
Inventors
- 👤 Theodor Kolobow
- 👤 Robert L Dedrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1694; A61M1/1696; B; B01; B01D; B01D61/00; B01D61/24; B01D61/30
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) | 1972-08-25 | 1973-02-24 | 1973-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-25 | 1977-02-24 | 1977-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-25 | 1981-02-24 | 1981-08-26 | $7700.00 | Window Closed / Lapsed |