Patent US2457962A successfully refreshed from Google Patents.
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 06:08
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE22454E
Cited
US2002252A
Cited
US2009435A
Cited
US2063921A
Cited
US2123482A
Cited
US2167432A
Cited
US2229534A
Cited
US2315924A
Cited
US2213056A
Cited
US2161508A
Cited
US2306698A
Cited
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 |