US3411480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for coating fine solids
Assignee: Smith Kline & French Laboratories Ltd
•
Filing: 1964-01-31
•
Granted: 1968-11-19
•
Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Jr George M Grass
- 👤 Manford J Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:51
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123537A
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US2270341A
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US2561392A
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US2561393A
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US2561394A
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US2582710A
Cited
US2799241A
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US2768095A
Cited
US2986475A
Cited
US3110626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |