Patent US2401340A successfully refreshed from Google Patents.
US2401340A
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Process for treating rolling oils
Assignee: BUCKEYE LAB CORP
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Filing: 1942-06-04
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Granted: 1946-06-04
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Expires: 1962-06-04
Abstract
No abstract record available.
Inventors
- 👤 Russell P Dunmire
- 👤 James A Camelford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:42
CPC Classifications
C; C10; C10M; C10M175/00; C10M175/04; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0269; B21B45/029; B21B45/0296; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-06-03 | 1949-12-03 | 1950-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-06-03 | 1953-12-03 | 1954-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-06-03 | 1957-12-03 | 1958-06-04 | $7700.00 | Window Closed / Lapsed |