Patent US2044757A successfully refreshed from Google Patents.
US2044757A
Expired / Lapsed
US
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Method of dispersing particles and apparatus therefor
Assignee: Individual
•
Filing: 1936-03-11
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Granted: 1936-06-16
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Expires: 1956-03-11
Abstract
No abstract record available.
Inventors
- 👤 Cross Matthew Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:59
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/80; B01F33/83; B01F33/8305; Y; Y10; Y10S; Y10S241/00; Y10S241/30; Y10S516/00; Y10S516/924; Y10S516/929
Claims Analysis
Total Claims: 0
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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) | 1939-06-16 | 1939-12-16 | 1940-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-16 | 1943-12-16 | 1944-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-16 | 1947-12-16 | 1948-06-16 | $7700.00 | Window Closed / Lapsed |