US2122173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing and reacting purposes
Assignee: Brown Co
•
Filing: 1935-12-10
•
Granted: 1938-06-28
•
Expires: 1955-12-10
Abstract
No abstract record available.
Inventors
- 👤 Orton B Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/70; B01F27/701; B01F27/702; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/139; Y10S165/152
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) | 1941-06-27 | 1941-12-27 | 1942-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-27 | 1945-12-27 | 1946-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-27 | 1949-12-27 | 1950-06-28 | $7700.00 | Window Closed / Lapsed |