US2037241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement of the reaction chamber for the treatment of material
Assignee: Individual
•
Filing: 1932-12-01
•
Granted: 1936-04-14
•
Expires: 1952-12-01
Abstract
No abstract record available.
Inventors
- 👤 Kangro Walther
- 👤 Lindner Agnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:33
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/02; C22B1/08; F; F27; F27B; F27B17/00
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) | 1939-04-14 | 1939-10-14 | 1940-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-14 | 1943-10-14 | 1944-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-14 | 1947-10-14 | 1948-04-14 | $7700.00 | Window Closed / Lapsed |