Patent US2829973A successfully refreshed from Google Patents.
US2829973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium base alloys
Assignee: Magnesium Elektron Ltd
•
Filing: 1954-03-15
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Granted: 1958-04-08
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Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Navarro Jose Maria De
- 👤 Henry J H Saunders
- 👤 Emley Edward Frederick
- 👤 James H T Petch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:52
CPC Classifications
C; C22; C22C; C22C23/00; C22C23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A MAGNESIUM BASE ALLOY HAVING A CONSISTENT AND FINE GRAIN STRUCTURE MADE OF THE FOLLOWING COMPOSITION:
Claim 2
Dependent Claim
16 words
A MAGNESIUM BASE ALLOY HAVING A CONSISTENT AND FINE GRAIN STRUCTURE MADE OF THE FOLLOWING COMPOSITION:
References Cited (Backward Citations)
US1941039A
Cited
US2420293A
Cited
US2270194A
Cited
CH225594A
Cited
US2380200A
Cited
US2549955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |