US2549644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for mixing materials
Assignee: Individual
•
Filing: 1948-08-06
•
Granted: 1951-04-17
•
Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Silverman Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/60; A61C5/66; B; B01; B01F; B01F35/00; B01F35/50; Y; Y10; Y10S; Y10S206/00; Y10S206/822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |