US2457962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomeration of powdered material
Assignee: Phillips Petroleum Co
•
Filing: 1945-02-19
•
Granted: 1949-01-04
•
Expires: 1965-02-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Whaley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:16
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/08; Y; Y10; Y10S; Y10S425/00; Y10S425/101; Y10T; Y10T428/00; Y10T428/30; Y10T428/31504; Y10T428/31826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2002252A
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US2009435A
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US2063921A
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US2123482A
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US2167432A
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US2229534A
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US2315924A
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US2213056A
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US2161508A
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US2306698A
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US2288087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |