US3352422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dialysis, heat or gas exchange having pumping and agitating means
Assignee: Individual
•
Filing: 1966-01-20
•
Granted: 1967-11-14
•
Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Heden Goran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:42
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/243; B01D61/244; B01D63/00; B01D63/08; B01D63/082; B01D63/0822; B01D2313/00; B01D2313/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
APPARATUS FOR DIALYSIS, HEAT EXCHANGE OR GAS EXCHANGE, COMPRISING, IN COMBINATION: AT LEAST TWO PLATES SEPARATED BY AN EXCHANGE MEMBRANCE; THERE BEING A GROOVE IN EACH OPPOSITE SURFACE OF SAID PLATES; A PASSAGE LEADING TO ONE END OF EACH GROOVE FOR INTRODUCING FLUID TO THE GROOVE AND A PASSAGE LEADING FROM THE OTHER END OF EACH GROOVE FOR WITHDRAWING FLUID FROM THE GROOVE; AND THE
Claim 2
Dependent Claim
65 words
APPARATUS FOR DIALYSIS, HEAT EXCHANGE OR GAS EXCHANGE, COMPRISING, IN COMBINATION: AT LEAST TWO PLATES SEPARATED BY AN EXCHANGE MEMBRANCE; THERE BEING A GROOVE IN EACH OPPOSITE SURFACE OF SAID PLATES; A PASSAGE LEADING TO ONE END OF EACH GROOVE FOR INTRODUCING FLUID TO THE GROOVE AND A PASSAGE LEADING FROM THE OTHER END OF EACH GROOVE FOR WITHDRAWING FLUID FROM THE GROOVE; AND THE
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |