Patent US2809407A successfully refreshed from Google Patents.
US2809407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a composite metal article
Assignee: Motors Liquidation Co
•
Filing: 1955-02-11
•
Granted: 1957-10-15
•
Expires: 1975-02-11
Abstract
No abstract record available.
Inventors
- 👤 Robert F Thomson
- 👤 Fred J Webbere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:18
CPC Classifications
B; B22; B22D; B22D19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
THE METHOD OF MAKING A COMPOSITE ARTICLE WHICH COMPRISES METALLURGICALLY BONDING A METERED AMOUNT OF MOLTEN METAL TO THE INNER WALL OF A METALLIC TUBULAR BODY MEMBER ADJACENT ONLY ONE END THEREOF THEREBY FORMING TUBULAR ARTICLE HAVING A CLOSED END.
Claim 2
Independent Claim
40 words
THE METHOD OF MAKING A COMPOSITE ARTICLE WHICH COMPRISES METALLURGICALLY BONDING A METERED AMOUNT OF MOLTEN METAL TO THE INNER WALL OF A METALLIC TUBULAR BODY MEMBER ADJACENT ONLY ONE END THEREOF THEREBY FORMING TUBULAR ARTICLE HAVING A CLOSED END.
References Cited (Backward Citations)
US518583A
Cited
US873976A
Cited
US987757A
Cited
US1708192A
Cited
US1983760A
Cited
US2101917A
Cited
US2275503A
Cited
GB499968A
Cited
US2155610A
Cited
US2337751A
Cited
US2339141A
Cited
US2364713A
Cited
US2399773A
Cited
US2689380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |