Patent US1505741A successfully refreshed from Google Patents.
Patent US2553215A successfully refreshed from Google Patents.
US2553215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction material
Assignee: Motors Liquidation Co
•
Filing: 1946-11-25
•
Granted: 1951-05-15
•
Expires: 1966-11-25
Abstract
No abstract record available.
Inventors
- 👤 Harold W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:21
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/31504; Y10T428/3167; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A MOLDED COMPOSITION OF MATTERFOR USE AS A WET CLUTCH FACING MATERIAL COMPRISING FIBER, TAKEN FROM THE CLASS CONSISTING OF COTTON FLOCK, LEATHER FIBER AND ASBESTOS FIBER, 90 TO 50 PARTS, GROUND CORK 10 TO 50 PARTS, A FRICTION-FORTIFYING MATERIAL UP TO 20 PARTS CONSISTING OF DUST MADE FROM POLYMERIZED CASHEW NUT SHELL OIL, AND A BINDER FOR THE WHOLE IN QUANTITIES OF FROM 20 TO 35 PARTS (SOLIDS), SAID RESIN BEING TAKEN FROM THE CLASS CONSISTING OF PHENOL FORMALDEHYDE RESIN, CRESOL FORMALDEHYDE RESIN AND UREA FORMALDEHYDE
Claim 2
Dependent Claim
87 words
A MOLDED COMPOSITION OF MATTERFOR USE AS A WET CLUTCH FACING MATERIAL COMPRISING FIBER, TAKEN FROM THE CLASS CONSISTING OF COTTON FLOCK, LEATHER FIBER AND ASBESTOS FIBER, 90 TO 50 PARTS, GROUND CORK 10 TO 50 PARTS, A FRICTION-FORTIFYING MATERIAL UP TO 20 PARTS CONSISTING OF DUST MADE FROM POLYMERIZED CASHEW NUT SHELL OIL, AND A BINDER FOR THE WHOLE IN QUANTITIES OF FROM 20 TO 35 PARTS (SOLIDS), SAID RESIN BEING TAKEN FROM THE CLASS CONSISTING OF PHENOL FORMALDEHYDE RESIN, CRESOL FORMALDEHYDE RESIN AND UREA FORMALDEHYDE
References Cited (Backward Citations)
US1472147A
Cited
US1436158A
Cited
US2165140A
Cited
US2185333A
Cited
US2256646A
Cited
US2327785A
Cited
US2406653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |