US2106869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drier for granular and like materials
Assignee: Individual
•
Filing: 1937-05-21
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Granted: 1938-02-01
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Expires: 1957-05-21
Abstract
No abstract record available.
Inventors
- 👤 Falkenstein Engelbert
- 👤 Barthelmess Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:42
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B01J8/003; B01J8/18; B01J8/24; B01J8/245; F; F26; F26B; F26B17/00; F26B17/10; F26B17/101; B01J2208/00; B01J2208/00743; B01J2208/00761
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) | 1941-01-31 | 1941-08-02 | 1942-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-31 | 1945-08-02 | 1946-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-31 | 1949-08-02 | 1950-02-01 | $7700.00 | Window Closed / Lapsed |