Patent US2546931A successfully refreshed from Google Patents.
US2546931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium alloy
Assignee: Dow Chemical Co
•
Filing: 1949-03-18
•
Granted: 1951-03-27
•
Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Donald L Leman
- 👤 John J Casey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:11
CPC Classifications
C; C22; C22C; C22C23/00; C22C23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A MAGNESIUM BASE ALLOY COMPOSED OF 6 TO 12 PER CENT OF LITHIUM, 16 TO 25 PER CENT OF ZINC, 1 TO 20 PER CENT OF CADMIUM, THE BALANCE BEING ESSENTIALLY MAGNESIUM.
Claim 2
Dependent Claim
32 words
A MAGNESIUM BASE ALLOY COMPOSED OF 6 TO 12 PER CENT OF LITHIUM, 16 TO 25 PER CENT OF ZINC, 1 TO 20 PER CENT OF CADMIUM, THE BALANCE BEING ESSENTIALLY MAGNESIUM.
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) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |