US2471102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of microcrystalline residues and products resulting there-from
Assignee: Sun Chemical Corp
•
Filing: 1945-12-04
•
Granted: 1949-05-24
•
Expires: 1965-12-04
Abstract
No abstract record available.
Inventors
- 👤 John J Fish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
C; C10; C10C; C10C3/00; C10C3/02; C10C3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1277092A
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US1740125A
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GB394414A
Cited
US2014629A
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US2119940A
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US2179208A
Cited
US2158672A
Cited
US2179988A
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US2337336A
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US2329785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |