US3433725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making metal or metalloid carbide yarn by decomposing the respective chloride in the presence of carbon yarn
Assignee: United States Department of the Air Force
•
Filing: 1966-04-15
•
Granted: 1969-03-18
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Expires: 1986-04-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Hough
- 👤 Robert T Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:02
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/62227; C01; C01B; C01B32/00; C01B32/90; C01B32/914; C01B32/956; C01B32/963; C01B32/991; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US679803A
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US821017A
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US2138672A
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US2072788A
Cited
US2141617A
Cited
US2978358A
Cited
GB929927A
Cited
US3113893A
Cited
US3129188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |