Patent US3522885A successfully refreshed from Google Patents.
US3522885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel flow hemodialyzer
Assignee: United States Atomic Energy Commission
•
Filing: 1968-04-18
•
Granted: 1970-08-04
•
Expires: 1988-04-18
Abstract
No abstract record available.
Inventors
- 👤 Ardis R Lavender
- 👤 Finley W Markley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:16
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; A; A61; A61M; A61M1/00; A61M1/14; A61M1/16; A61M1/1621; A61M1/1623; A61M1/1627; A61M1/36; A61M1/3672; B01D61/00; B01D61/24; B01D61/28; B01D71/00; B01D71/06; B01D71/08; B01D71/12; B01D2313/00; B01D2313/14; B01D2313/146
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |