US2560024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making friction material
Assignee: Bridgestone Firestone Inc
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Filing: 1949-04-08
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Granted: 1951-07-10
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Expires: 1969-04-08
Abstract
No abstract record available.
Inventors
- 👤 Roy W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:57
CPC Classifications
F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/068; C; C10; C10M; C10M177/00; C10M5/00; F16C11/0619; F16C11/0623; F16C11/0628; F16C11/0666; F16C11/0671; F16C11/0685; C10M2201/00; C10M2201/04; C10M2201/041; C10M2201/042; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/082; C10M2211/00; C10M2211/04; C10M2211/044; C10M2211/06; C10N; C10N2010/00; C10N2010/06; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
THE METHOD OF MAKING FRIOTION MATERIAL COMPRISING ADHERING ONE FACE OF LAYER OF A FLEXIBLE, POROUS BEARING MATERIAL TO AN INSULATING LAYER OF A VULCANIZABLE RESILIENT, ELASTIC SUBSTANCE, VULCANIZING THE INSULATING LAYER TO A METAL BACKING MEMBER, AND IMPREGNATING THE EXPOSED FACE OF THE BEARING MATERIAL WITH A LIQUEFIED LUBRICANT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |