US3409974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making tungsten-based composite materials
Assignee: Alloys Unlimited Inc
•
Filing: 1967-07-07
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Granted: 1968-11-12
•
Expires: 1987-07-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Lueck
- 👤 Plante Jerry C La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:43
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/30; H01; H01B; H01B1/00; H01B1/02; H10W72/071; H10W72/073; H10W72/07331; H10W72/07336
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |