Patent US3458048A successfully refreshed from Google Patents.
US3458048A
Expired / Lapsed
US
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Dialyzer
Assignee: Sweden Freezer Manufacturing Co
•
Filing: 1965-10-23
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Granted: 1969-07-29
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Harvey F Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:49
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/28; B01D63/00; B01D63/08; B01D63/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2568990A
Cited
US2686154A
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US3074559A
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US3223612A
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US3060934A
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US3212642A
Cited
US3252272A
Cited
US3212498A
Cited
US3332746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |