US1849622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialyzer frame
Assignee: Individual
•
Filing: 1928-06-13
•
Granted: 1932-03-15
•
Expires: 1948-06-13
Abstract
No abstract record available.
Inventors
- 👤 Heibig Edouard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:30
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/24; B01D61/30; B01D63/00; B01D63/08; B01D63/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-03-15 | 1935-09-14 | 1936-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-15 | 1939-09-14 | 1940-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-15 | 1943-09-14 | 1944-03-15 | $7700.00 | Window Closed / Lapsed |