US3406826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial kidney liquid metering and dispensing device
Assignee: Althin Medical Inc
•
Filing: 1965-11-17
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Granted: 1968-10-22
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Expires: 1985-11-17
Abstract
No abstract record available.
Inventors
- 👤 Charles B Willock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:48
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1654; A61M1/1656; A61M1/166; A61M1/1662; A61M1/1668; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/034; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T137/2514; Y10T137/2516
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2427429A
Cited
US2533281A
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US2566436A
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US2736466A
Cited
US2920640A
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US3332746A
Cited
US3352779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |