US3409419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrides plus wear-resistant additives bonded with iron, cobalt or nickel
Assignee: EIDP Inc
•
Filing: 1966-11-09
•
Granted: 1968-11-05
•
Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Paul C Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/58007; C04B35/01; C04B35/10; C04B35/111; C04B35/117; C04B35/58014; C04B35/58028; C04B35/581; C04B35/622; C04B35/64; C04B35/645; C04B35/71; C22; C22C; C22C29/00; C22C29/16; C22C32/00; C22C32/0047; C22C32/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1895959A
Cited
GB395134A
Cited
US2077239A
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US2040592A
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US2108618A
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DE1041410B
Cited
US2929126A
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US3000734A
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US3262763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |