US2898660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving the high-temperature strength and other properties of molybdenum disilicide and other intermetallic compounds
Assignee: Individual
•
Filing: 1953-04-24
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Granted: 1959-08-11
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Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 William A Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:25
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/515; C04B35/58; C04B35/58085; C04B35/58092; C22; C22C; C22C29/00; C22C29/18
Claims Analysis
Total Claims: 0
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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) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |