Patent US2723015A successfully refreshed from Google Patents.
US2723015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-operated frictional coupling
Assignee: Rexnord Industries LLC
•
Filing: 1950-08-24
•
Granted: 1955-11-08
•
Expires: 1970-08-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Wellauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:48
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/04; F16D25/042; F16D25/046; F16D51/00; F16D51/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2194853A
Cited
US2283325A
Cited
US2229922A
Cited
US2246979A
Cited
US2268509A
Cited
US2252128A
Cited
FR914566A
Cited
US2382570A
Cited
US2422227A
Cited
US2434761A
Cited
US2637427A
Cited
US2630198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |