Patent US4322393A successfully refreshed from Google Patents.
US2256187A
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Mineral oil product and process of treating the same
Assignee: Monsanto Chemicals Ltd
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Filing: 1935-07-17
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Granted: 1941-09-16
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Expires: 1955-07-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Bartram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:01
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/08; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
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) | 1944-09-15 | 1945-03-17 | 1945-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-15 | 1949-03-17 | 1949-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-15 | 1953-03-17 | 1953-09-16 | $7700.00 | Window Closed / Lapsed |