US2113047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary drier
Assignee: Heil Co
•
Filing: 1936-11-16
•
Granted: 1938-04-05
•
Expires: 1956-11-16
Abstract
No abstract record available.
Inventors
- 👤 Henry C French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:44
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/024; Y; Y10; Y10S; Y10S277/00; Y10S277/903
Claims Analysis
Total Claims: 0
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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) | 1941-04-04 | 1941-10-04 | 1942-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-04 | 1945-10-04 | 1946-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-04 | 1949-10-04 | 1950-04-05 | $7700.00 | Window Closed / Lapsed |