US3714852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transfer device
Assignee: Individual
•
Filing: 1971-06-03
•
Granted: 1973-02-06
•
Expires: 1991-06-03
Abstract
Abstract A POWER TRANSFER DEVICE FOR TRANSFERRING THE POWER OF A HAND TOOL TO WORK LOCATED IN AN OTHERWISE HARD TO REACH LOCATION, AND COMPRISING A NARROW ELONGATED HOUSING WITH A SPROCKET AT EACH END AND COUPLED BY A CHAIN DRIVE. THE ONE SPROCKET HAS AN AXIAL POLYGONAL OPENING FOR ENGAGEMENT WITH A HAND TOOL, WHILE THE OTHER SPROCKET IS PROVIDED WITH AN AXIAL EXTENSION OF POLYGONAL SECTION TO ACCOMMODATE A SOCKET.
Inventors
- 👤 J Giangrasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
B; B25; B25B; B25B17/00; B25B13/00; B25B13/48; B25B13/481
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |