US1986243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polish
Assignee: Standard Oil Co
•
Filing: 1931-02-06
•
Granted: 1935-01-01
•
Expires: 1951-02-06
Abstract
No abstract record available.
Inventors
- 👤 Maurice H Arveson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:23
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/50; C11D7/5004; C11D7/5018; C11D17/00; C11D17/0008; C11D17/0013; C11D7/02
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) | 1937-12-31 | 1938-07-02 | 1939-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-31 | 1942-07-02 | 1943-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-31 | 1946-07-02 | 1947-01-01 | $7700.00 | Window Closed / Lapsed |