Patent US2137328A successfully refreshed from Google Patents.
US2137328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material agitating means
Assignee: Mixing Equipment Co Inc
•
Filing: 1937-08-18
•
Granted: 1938-11-22
•
Expires: 1957-08-18
Abstract
No abstract record available.
Inventors
- 👤 Everett S Bissell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:56
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/60; B01F27/71; F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/182; B01F33/00; B01F33/86; F16J15/184; B01F35/00; B01F35/30; B01F2035/35; B01F2035/351; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
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) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |