US3489146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial kidney system
Assignee: Eastman Kodak Co
•
Filing: 1967-01-12
•
Granted: 1970-01-13
•
Expires: 1987-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jacob C Rubin
- 👤 Edward J Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:08
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1151300A
Cited
US2256845A
Cited
US2880501A
Cited
US2864507A
Cited
US3051316A
Cited
US3016249A
Cited
US3116943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |