US2063880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil
Assignee: Lubrizol Development Corp
•
Filing: 1934-01-22
•
Granted: 1936-12-08
•
Expires: 1954-01-22
Abstract
No abstract record available.
Inventors
- 👤 Bert H Lincoln
- 👤 Ellen M Henriksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:28
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2211/00; C10M2211/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-12-08 | 1940-06-08 | 1940-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-08 | 1944-06-08 | 1944-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-08 | 1948-06-08 | 1948-12-08 | $7700.00 | Window Closed / Lapsed |