Patent US2419568A successfully refreshed from Google Patents.
US2515541A
Expired / Lapsed
US
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Apparatus for disintegration of solids
Assignee: Gas Technology Institute
•
Filing: 1947-07-22
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Granted: 1950-07-18
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Expires: 1967-07-22
Abstract
No abstract record available.
Inventors
- 👤 John I Yellott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/06; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US256072A
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US1655618A
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US2139808A
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US1578609A
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US1950558A
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US1922313A
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US2032827A
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US2175457A
Cited
US2363351A
Cited
US2392866A
Cited
US2385508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |