US2925928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of handling subdivided solids
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-06-23
•
Granted: 1960-02-23
•
Expires: 1974-06-23
Abstract
No abstract record available.
Inventors
- 👤 Homer Z Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:38
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1686435A
Cited
US2331938A
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US2314316A
Cited
US2428995A
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US2561396A
Cited
US2517042A
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US2667280A
Cited
US2753061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |