US2494153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying and pulverizing method and apparatus
Assignee: MICRONIZER Co
•
Filing: 1945-02-23
•
Granted: 1950-01-10
•
Expires: 1965-02-23
Abstract
No abstract record available.
Inventors
- 👤 Norwood H Andrews
- 👤 John L Speirs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:43
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/24; B; B02; B02C; B02C19/00; B02C19/06; B02C19/065; F26B17/10; F26B17/108
Claims Analysis
Total Claims: 0
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US2435927A
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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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |