US2604662A
Expired / Lapsed
US
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Extrusion of inorganic oxide hydrogels
Assignee: ExxonMobil Oil Corp
•
Filing: 1949-08-02
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Granted: 1952-07-29
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Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Bodkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:26
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J2/00; B01J2/20; B01J20/00; B01J20/02; B01J20/06; B01J20/08; Y; Y10; Y10S; Y10S425/00; Y10S425/055
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |