US2459398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air treatment device
Assignee: CCA PRODUCTS ENGINEERING Co
•
Filing: 1946-07-12
•
Granted: 1949-01-18
•
Expires: 1966-07-12
Abstract
No abstract record available.
Inventors
- 👤 Wyeth C Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:32
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B25; B25D; B25D17/00; B25D17/26; B25D17/265; F; F16; F16N; F16N7/00; F16N7/30; F16N7/32; F16N7/34; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/794; Y10T137/7976; Y10T137/8085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US745567A
Cited
US1127896A
Cited
GB190926284A
Cited
US1990524A
Cited
US2003132A
Cited
US2046313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |