Patent US1893464A successfully refreshed from Google Patents.
US1893464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating apparatus
Assignee: Lincoln Engineering Co
•
Filing: 1932-01-18
•
Granted: 1933-01-03
•
Expires: 1952-01-18
Abstract
No abstract record available.
Inventors
- 👤 Frank S Barks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:52
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/02; F16N13/06; F16N13/16
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) | 1936-01-03 | 1936-07-04 | 1937-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-03 | 1940-07-04 | 1941-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-03 | 1944-07-04 | 1945-01-03 | $7700.00 | Window Closed / Lapsed |