US1918593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant
Assignee: Dow Chemical Co
•
Filing: 1928-12-24
•
Granted: 1933-07-18
•
Expires: 1948-12-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert H Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:30
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2207/00; C10M2207/04; C10M2207/044; C10N; C10N2040/00; C10N2040/135
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) | 1936-07-17 | 1937-01-16 | 1937-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-17 | 1941-01-16 | 1941-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-17 | 1945-01-16 | 1945-07-18 | $7700.00 | Window Closed / Lapsed |