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US3416664A
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US
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Artificial kidney
Assignee: HERMAN L KUMME
•
Filing: 1964-11-16
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Granted: 1968-12-17
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Herman L Kumme
- 👤 John F Lontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:50
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/36; A61M1/3621; A61M1/3623; B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/08; B01D63/082; B01D63/0822; B01D2313/00; B01D2313/62; B01D2313/90; B01D2313/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2659368A
Cited
US2927582A
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US3043303A
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US3017885A
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US3212642A
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US3206768A
Cited
US3332746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |