US3189442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium-lithium-yttrium alloys
Assignee: Individual
•
Filing: 1963-05-27
•
Granted: 1965-06-15
•
Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Paul D Frost
- 👤 Thomas G Byrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
C; C22; C22C; C22C23/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A MAGNESIUM BASE ALLOY CONSISTING OF ABOUT 10 TO 12 PERCENT BY WEIGHT LITHIUM, ABOUT 1 TO 3 PERCENT BY WEIGHT YTTRIUM, AND ABOUT 1 TO 5 PERCENT BY WEIGHT OF A METAL SELECTED FROM THE GROUP CONSISTING OF THORIUM AND ALUMINUM, THE BALANCE BEING MAGNESIUM.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |