US1940341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating iron baths
Assignee: Krupp Stahl AG
•
Filing: 1929-08-02
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Granted: 1933-12-19
•
Expires: 1949-08-02
Abstract
No abstract record available.
Inventors
- 👤 Bansen Hugo
- 👤 Lobbecke Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:11
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/04; C21C7/072; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4606; C21C5/4613
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) | 1936-12-18 | 1937-06-19 | 1937-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-12-18 | 1941-06-19 | 1941-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-12-18 | 1945-06-19 | 1945-12-19 | $7700.00 | Window Closed / Lapsed |