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US3306401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beryllium containing friction element
Assignee: Lambert Brake Corp
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Filing: 1965-04-21
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Granted: 1967-02-28
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Expires: 1985-04-21
Abstract
No abstract record available.
Inventors
- 👤 Lester F Dasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:52
CPC Classifications
F; F16; F16D; F16D69/00; F16D69/02; F16D69/027; F16D65/00; F16D65/02; F16D65/12; F16D65/125; F16D65/126; F16D65/127; B; B29; B29L; B29L2031/00; B29L2031/16; F16D69/04; F16D2069/0425; F16D2069/045; F16D2069/0458; F16D2069/0491; F16D2250/00; F16D2250/0061; F16D2250/0076; F16D65/122; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076; Y10T428/12083; Y10T428/1209; Y10T428/12229; Y10T428/12236; Y10T428/12243; Y10T428/12493; Y10T428/12729; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A FRICTION MEMBER FOR A FRICTION DEVICE COMPRISING A PRE-SINTERED BODY OF BERYLLIUM FORMED UNDER PREDETERMINED HIGH PRESSURE AND TEMPERATURE FOR A PREDETERMINED LENGTH OF TIME AND HAVING A SUBSEQUENTLY FINISHED SURFACE, A LINING ELEMENT SECURED TO SAID BODY SURFACE, SAID LINING ELEMENT COMPRISING A PRESINTERED LAMINATE FORMED UNDER PREDETERMINED HIGH PRESSURE AND TEMPERATURE FOR A PREDETERMINED LENGTH OF TIME AND INCLUDING A PRE-SINTERED OUTER LAYER OF METALLIC AND NON-METALLIC LINING MATERIAL AND A RELATIVELY THIN PRE-SINTERED INNER LAYER OF SUBSTANTAILLY ONLY METALLIC MATERIAL, AND A BONDING MATERIAL MELTED AND BONDED UNDER A PRESSURE AND FOR A TIME SUBSEQUENTLY LESS THAN SAID PREDETERMINED SINTERING PRESSURES AND TIMES BETWEEN AND JOINING SAID BODY AND SAID INNER LAYER.
Claim 2
Dependent Claim
116 words
A FRICTION MEMBER FOR A FRICTION DEVICE COMPRISING A PRE-SINTERED BODY OF BERYLLIUM FORMED UNDER PREDETERMINED HIGH PRESSURE AND TEMPERATURE FOR A PREDETERMINED LENGTH OF TIME AND HAVING A SUBSEQUENTLY FINISHED SURFACE, A LINING ELEMENT SECURED TO SAID BODY SURFACE, SAID LINING ELEMENT COMPRISING A PRESINTERED LAMINATE FORMED UNDER PREDETERMINED HIGH PRESSURE AND TEMPERATURE FOR A PREDETERMINED LENGTH OF TIME AND INCLUDING A PRE-SINTERED OUTER LAYER OF METALLIC AND NON-METALLIC LINING MATERIAL AND A RELATIVELY THIN PRE-SINTERED INNER LAYER OF SUBSTANTAILLY ONLY METALLIC MATERIAL, AND A BONDING MATERIAL MELTED AND BONDED UNDER A PRESSURE AND FOR A TIME SUBSEQUENTLY LESS THAN SAID PREDETERMINED SINTERING PRESSURES AND TIMES BETWEEN AND JOINING SAID BODY AND SAID INNER LAYER.
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 |