US3485751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialyzer apparatus and method
Assignee: LEON R SPADONI
•
Filing: 1967-01-06
•
Granted: 1969-12-23
•
Expires: 1987-01-06
Abstract
No abstract record available.
Inventors
- 👤 Walter L Herrmann
- 👤 Leon R Spadoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:07
CPC Classifications
A; A61; A61B; A61B10/00; B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734017A
Cited
US2664395A
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US2687997A
Cited
US3062737A
Cited
US3228877A
Cited
US3367787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |