US2445928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preparing in a gaseous medium pulverulent noncoalescent dispersions
Assignee: Individual
•
Filing: 1944-06-06
•
Granted: 1948-07-27
•
Expires: 1964-06-06
Abstract
No abstract record available.
Inventors
- 👤 Sommer Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:37
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/16; B01F; B01F27/00; B01F27/60; B01F27/70; B01F27/701; B01F27/702; B01J8/00; B01J8/08; B01J8/10; E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/105; B01J2219/00; B01J2219/18; B01J2219/182
Claims Analysis
Total Claims: 0
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US933039A
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US1588059A
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US1836754A
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US2125860A
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US2320469A
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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) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |