Patent US2392471A successfully refreshed from Google Patents.
US2392471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Vickers Inc
•
Filing: 1942-02-11
•
Granted: 1946-01-08
•
Expires: 1962-02-11
Abstract
No abstract record available.
Inventors
- 👤 Milton R Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:56
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B2211/00; F15B2211/20; F15B2211/21; F15B2211/212; F15B2211/255; F15B2211/30; F15B2211/305; F15B2211/3056; F15B2211/30565; F15B2211/31; F15B2211/3105; F15B2211/3116; F15B2211/315; F15B2211/31523; F15B2211/31529; F15B2211/31535; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/327; F15B2211/355; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/75
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) | 1949-01-07 | 1949-07-09 | 1950-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-01-07 | 1953-07-09 | 1954-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-01-07 | 1957-07-09 | 1958-01-08 | $7700.00 | Window Closed / Lapsed |