US2561394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating particulate materials
Assignee: Individual
•
Filing: 1946-03-16
•
Granted: 1951-07-24
•
Expires: 1966-03-16
Abstract
No abstract record available.
Inventors
- 👤 Donald E Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:26
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/285; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18; B01J; B01J2/00; B01J2/02; C; C11; C11C; C11C3/00; C11C3/04; Y; Y10; Y10S; Y10S159/00; Y10S159/02; Y10S159/03; Y10S159/14; Y10S159/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |