Patent US2601862A successfully refreshed from Google Patents.
US2601862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil absorbing
Assignee: —
•
Filing: —
•
Granted: 1952-07-01
•
Expires: 1969-07-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:07
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; B; B01; B01J; B01J20/00; B01J20/02; B01J20/04; B01J20/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1111445A
Cited
GB362402A
Cited
US2209444A
Cited
US2196949A
Cited
US2301457A
Cited
US2317961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |