Patent US2586671A successfully refreshed from Google Patents.
US2586671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating systems
Assignee: United Aircraft Products Inc
•
Filing: 1945-10-19
•
Granted: 1952-02-19
•
Expires: 1965-10-19
Abstract
No abstract record available.
Inventors
- 👤 Landis Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:57
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/08; F01; F01M; F01M5/00; F01M5/02; F01M5/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/265; Y10T137/2668; Y10T137/4673; Y10T137/4824; Y10T137/6416; Y10T137/6579; Y10T137/8593; Y10T137/86348; Y10T137/86372
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |