US1551965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for drying material by means of fire gases
Assignee: American Lurgi Corp
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Filing: 1924-05-15
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Granted: 1925-09-01
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Expires: 1944-05-15
Abstract
No abstract record available.
Inventors
- 👤 Muller Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:57
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12; F26B17/14; F26B17/1433; F26B17/1441; F26B17/1458
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) | 1928-08-31 | 1929-03-02 | 1929-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-08-31 | 1933-03-02 | 1933-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-08-31 | 1937-03-02 | 1937-09-01 | $7700.00 | Window Closed / Lapsed |