US2467215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehumidification of fluids
Assignee: ATTAPULGUS CLAY Co
•
Filing: 1943-07-22
•
Granted: 1949-04-12
•
Expires: 1963-07-22
Abstract
No abstract record available.
Inventors
- 👤 William S W Mccarter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:59
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US345174A
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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) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |