US3494884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction lining compositions
Assignee: Federal Mogul Bremsbelag GmbH
•
Filing: 1964-05-27
•
Granted: 1970-02-10
•
Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Paul Kraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:29
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A BRAKE OR CLUTCH FRICTION COMPOSITION WHICH CONSISTS OF AN INTIMATE MIXTURE OF GRAINS OF A SINTERED AND THEN PULVERIZED INORGANIC FRICTION MATERIAL COMPRISING A METALLIC BINDER SELECTED OF THE GROUP CONSISTING OF COPPER, ZINC, TIN, LEAD, NICKEL, COBALT, IRON, AND BRASS, AND CONTAINING AN ABRASIVE INGREDIENT BEING SELECTED OF THE GROUP CONSISTING OF SILICA, ALUMINUM OXIDE, CARBORUNDUM, CORUNDUM, TOGETHER WITH AN ORGANIC FRICTION MATERIAL COMPRISING AN ORGANIC BINDER BEING SELECTED OF THE GROUP CONSISTING OF NATURAL OR SNTHETIC RUBBER, PHENOL FORMALDEHYDE RESIN, AND CONTAINING A FILLER BEING SELECTED OF THE GROUP CONSISTING OF ASBESTOS, GLASS PARTICLES, METALLIC STRANDS, BARYTES, METAL OXIDES.
Claim 2
Dependent Claim
102 words
A BRAKE OR CLUTCH FRICTION COMPOSITION WHICH CONSISTS OF AN INTIMATE MIXTURE OF GRAINS OF A SINTERED AND THEN PULVERIZED INORGANIC FRICTION MATERIAL COMPRISING A METALLIC BINDER SELECTED OF THE GROUP CONSISTING OF COPPER, ZINC, TIN, LEAD, NICKEL, COBALT, IRON, AND BRASS, AND CONTAINING AN ABRASIVE INGREDIENT BEING SELECTED OF THE GROUP CONSISTING OF SILICA, ALUMINUM OXIDE, CARBORUNDUM, CORUNDUM, TOGETHER WITH AN ORGANIC FRICTION MATERIAL COMPRISING AN ORGANIC BINDER BEING SELECTED OF THE GROUP CONSISTING OF NATURAL OR SNTHETIC RUBBER, PHENOL FORMALDEHYDE RESIN, AND CONTAINING A FILLER BEING SELECTED OF THE GROUP CONSISTING OF ASBESTOS, GLASS PARTICLES, METALLIC STRANDS, BARYTES, METAL OXIDES.
References Cited (Backward Citations)
US2369502A
Cited
US2725286A
Cited
US2971615A
Cited
GB830322A
Cited
US3079243A
Cited
US3210303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |