US2606628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-10-25
•
Granted: 1952-08-12
•
Expires: 1967-10-25
Abstract
No abstract record available.
Inventors
- 👤 Claude F Hasselwander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:11
CPC Classifications
B; B01; B01D; B01D50/00; B01D50/20; B01D46/00; B01D46/0002; B01D46/0004; B01D46/0039; B01D46/0047; B01D46/0049; B01D46/24; B01D46/2403; B01D46/2411; Y; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2085155A
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US2322548A
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US2377549A
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US2341097A
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US2413769A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |