US2766558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for mixing an abrasive powder with a gaseous carrier under pressure
Assignee: Individual
•
Filing: 1951-12-07
•
Granted: 1956-10-16
•
Expires: 1971-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert B Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:12
CPC Classifications
B; B24; B24C; B24C7/00; B24C7/0046; B24C7/0053; B24C7/0092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US794122A
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US1704026A
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US1704025A
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US1712804A
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US1705162A
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US1739349A
Cited
US2161131A
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US2323864A
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US2525641A
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US2496194A
Cited
US2549033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |