Patent US3796999A successfully refreshed from Google Patents.
US2462825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic declutching means for multiengine drives
Assignee: RTX Corp
•
Filing: 1944-11-03
•
Granted: 1949-02-22
•
Expires: 1964-11-03
Abstract
No abstract record available.
Inventors
- 👤 Charles H Zimmerman
- 👤 Henry J Rapuano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:36
CPC Classifications
F; F16; F16D; F16D25/00; F16D47/00; G; G05; G05G; G05G15/00; G05G15/08
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) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |