US1913470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrating process and apparatus
Assignee: WELTHA PROCESS Corp
•
Filing: 1929-02-25
•
Granted: 1933-06-13
•
Expires: 1949-02-25
Abstract
No abstract record available.
Inventors
- 👤 George F Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:03
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/18; F26B3/22; F26B17/00; F26B17/10; F26B17/101; F26B17/105; F26B17/12; F26B17/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-06-12 | 1936-12-12 | 1937-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-06-12 | 1940-12-12 | 1941-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-06-12 | 1944-12-12 | 1945-06-13 | $7700.00 | Window Closed / Lapsed |