Patent US2544670A successfully refreshed from Google Patents.
US2544670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming composite aluminum-steel parts by casting aluminum onto steel andbonding thereto
Assignee: Motors Liquidation Co
•
Filing: 1947-08-12
•
Granted: 1951-03-13
•
Expires: 1967-08-12
Abstract
No abstract record available.
Inventors
- 👤 Howard L Grange
- 👤 Dean K Hanink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:00
CPC Classifications
C; C23; C23C; C23C6/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
20 words
THE METHOD OF FORMING COMPOSITE METAL ARTICLES WHICH COMPRISES IMMERSING STEEL IN A FUSED SALT BATH COMPOSED APPROXIMATELY AS FOLLOW:
References Cited (Backward Citations)
US597111A
Cited
US1807689A
Cited
US1454214A
Cited
US1550280A
Cited
GB257262A
Cited
US2101553A
Cited
US2066454A
Cited
US2148664A
Cited
US2112578A
Cited
US2123181A
Cited
US2265243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |