US3192740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction clutch
Assignee: Robertshaw Controls Co
•
Filing: 1963-06-07
•
Granted: 1965-07-06
•
Expires: 1983-06-07
Abstract
No abstract record available.
Inventors
- 👤 Stamates Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/02; F16D7/024; F16D7/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A FRICTION CLUTCH COMPRISING; A SHAFT, A DRIVING MEMBER FIXED TO THE SHAFT, A CIRCULAR BOSS FORMED ON THE DRIVING MEMBER CONCENTRIC WITH THE SHAFT, A DRIVEN MEMBER ROTATABLY MOUNTED ON THE BOSS ADAPTED TO FRICTIONALLY ENGAGE THE DRIVING MEMBER, A SLOT FORMED DIAMETRICALLY IN THE CIRCULAR BOSS,
Claim 2
Dependent Claim
48 words
A FRICTION CLUTCH COMPRISING; A SHAFT, A DRIVING MEMBER FIXED TO THE SHAFT, A CIRCULAR BOSS FORMED ON THE DRIVING MEMBER CONCENTRIC WITH THE SHAFT, A DRIVEN MEMBER ROTATABLY MOUNTED ON THE BOSS ADAPTED TO FRICTIONALLY ENGAGE THE DRIVING MEMBER, A SLOT FORMED DIAMETRICALLY IN THE CIRCULAR BOSS,
References Cited (Backward Citations)
US1228627A
Cited
US1266280A
Cited
US1575637A
Cited
US2050542A
Cited
GB559932A
Cited
US2564103A
Cited
US2651530A
Cited
US3111824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |