Patent US1877337A successfully refreshed from Google Patents.
US1877337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing highly uniform solutions for the manufacture of artificial products
Assignee: IG Farbenindustrie AG
•
Filing: 1930-03-25
•
Granted: 1932-09-13
•
Expires: 1950-03-25
Abstract
No abstract record available.
Inventors
- 👤 Kampf Adolf
- 👤 Hager Arnulf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1935-09-13 | 1936-03-14 | 1936-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-13 | 1940-03-14 | 1940-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-13 | 1944-03-14 | 1944-09-13 | $7700.00 | Window Closed / Lapsed |