US2461113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid treatment equipment
Assignee: Hanson Van Winkle Munning Co
•
Filing: 1946-10-14
•
Granted: 1949-02-08
•
Expires: 1966-10-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:53
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/044; B65G49/045; B65G49/0454; B65G49/0463
Claims Analysis
Total Claims: 0
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US2127406A
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US2256560A
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US2222839A
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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) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |