US2441774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing powdered material
Assignee: Individual
•
Filing: 1944-09-22
•
Granted: 1948-05-18
•
Expires: 1964-09-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Shaw
- 👤 Shaw Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:48
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US445732A
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US532500A
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DE467526C
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US637081A
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US722782A
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US832400A
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US1125103A
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US1145215A
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US2094802A
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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) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |