US2367578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary drier
Assignee: Individual
•
Filing: 1942-09-14
•
Granted: 1945-01-16
•
Expires: 1962-09-14
Abstract
No abstract record available.
Inventors
- 👤 Francis A Helin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:50
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/14; F26B13/18; F26B13/183; A; A23; A23C; A23C1/00; A23C1/01; A23C1/03; D; D21; D21F; D21F5/00; D21F5/02; F26B11/00; F26B11/02; F26B11/04; F26B11/0445; F26B11/045; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10S165/069
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) | 1948-01-16 | 1948-07-17 | 1949-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-01-16 | 1952-07-17 | 1953-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-01-16 | 1956-07-17 | 1957-01-16 | $7700.00 | Window Closed / Lapsed |