Patent US3378743A successfully refreshed from Google Patents.
US3758281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Msintered alloy and wear resisting sliding parts manufactured therefro
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1971-04-30
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Granted: 1973-09-11
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Expires: 1991-04-30
Abstract
Abstract A SINTERED ALLOY CONSISTING OF FE, CR, AND PB HAVING A STRUCTURE IN WHICH PB IS DISPERSED INTO A FE-CR-C MATRIX, AND SLIDING PARTS OR MEMBERS MANUFACTURED FROM THE SINTERED ALLOY.
Inventors
- 👤 K Motoyoshi
- 👤 T Kawakita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:39
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/02; C22C33/0257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |