US2440778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporating and drying apparatus
Assignee: Individual
•
Filing: 1945-05-25
•
Granted: 1948-05-04
•
Expires: 1965-05-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Maglaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:10
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/18; F26B17/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US662173A
Cited
US794831A
Cited
US1100028A
Cited
US2004497A
Cited
US2066358A
Cited
US2024516A
Cited
US2067506A
Cited
US2240503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |