Patent US3306715A successfully refreshed from Google Patents.
US3306715A
Expired / Lapsed
US
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Friction material composition
Assignee: Federal Mogul Bremsbelag GmbH
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Filing: 1965-07-07
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Granted: 1967-02-28
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Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Schlomer Josef
- 👤 Gerloff Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:56
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0207; C22C33/0228; F; F16; F16D; F16D69/00; F16D69/02; F16D69/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOSITION ADAPTED FOR THE PREPARATION OF A SINTERED FRICTION MATERIAL CONSISTING ESSENTIALLY OF:
Claim 2
Dependent Claim
14 words
A COMPOSITION ADAPTED FOR THE PREPARATION OF A SINTERED FRICTION MATERIAL CONSISTING ESSENTIALLY OF:
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |