US3295941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond reinforced coatings and method of preparing same
Assignee: EIDP Inc
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Filing: 1963-06-26
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Granted: 1967-01-03
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Spellman James Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:19
CPC Classifications
C; C22; C22C; C22C26/00; C23; C23C; C23C24/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12771; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
AN ARTICLE OF MANUFACTURE WHICH COMPRISES A MEMBER AND A WEAR-RESISTANT COATING POSITIONED ON THE SURFACE OF SAID MEMBER; SAID COATING COMPRISING A METAL MATRIX, A CERAMIC MATRIX SELECTED FROM THE GROUP CONSISTING OF ALUMINUM OXIDE, CHROMIUM SESQUIOXIDE, BERYLLIUM OXIDE, SILICON DIOXIDE, ZIRCONIUM OXIDE, STANNIC OXIDE, TITANIUM OXIDE, AND MIXTURES THEREOF AS THE OUTERMOST LAYER, AND DIAMOND PARTICLES EMBEDDED IN THE SAID METAL AND CERAMIC MATRICES, SAID OUTERMOST LAYER BEING OF SUBSTANTIALLY UNIFORM THICKNESS IN THE REGIONS BETWEEN SAID DIAMOND PARTICLES, AND THE OUTER SURFACE OF SAID COATING BEING SUBSTANTIALLY SMOOTH AND HAVING PORTIONS OF AT LEAST A SUBSTANTIAL PROPORTION OF SAID DIAMOND PARTICLES EXPOSED.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |