US1928241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of conditioning oil bearing materials
Assignee: French Oil Mill Machinery Co
•
Filing: 1930-06-25
•
Granted: 1933-09-26
•
Expires: 1950-06-25
Abstract
No abstract record available.
Inventors
- 👤 Kirtland C Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:04
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/02; C11B1/04
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) | 1936-09-25 | 1937-03-27 | 1937-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-09-25 | 1941-03-27 | 1941-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-09-25 | 1945-03-27 | 1945-09-26 | $7700.00 | Window Closed / Lapsed |