US2194274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic lubricator
Assignee: F C HARRA
•
Filing: 1936-08-24
•
Granted: 1940-03-19
•
Expires: 1956-08-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:29
CPC Classifications
F; F01; F01M; F01M3/00; F01M3/04; F16; F16N; F16N7/00; F16N7/30; F16N7/32; F01M5/00; F01M5/005; F01M5/007; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
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) | 1943-03-19 | 1943-09-18 | 1944-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-19 | 1947-09-18 | 1948-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-19 | 1951-09-18 | 1952-03-19 | $7700.00 | Window Closed / Lapsed |