Patent US2634469A successfully refreshed from Google Patents.
US2634469A
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Bonding aluminum or aluminum base alloy to ferrous metal by means of an alloy bond
Assignee: Motors Liquidation Co
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Filing: 1947-06-19
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Granted: 1953-04-14
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Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 William H Pershing
- 👤 Julius J Mcclain
- 👤 John A Fulwider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:05
CPC Classifications
B; B22; B22D; B22D19/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF FORMING A COMPOSITE MATAL ARTICLE WHICH COMPRISES ACID ETCHING A FERROUS METAL MEMBER, IMMERSING SAID ETCHED FERROUS METAL MEMBER IN A MOLTEN ZINC BASE ALLOY BATH CONTAINING SMALL AMOUNTS OF EACH OF TIN AND ALUMINUM, SAID BATH BEING AT A TEMPERATURE ON THE ORDER OF 1300*-1420* F., HOLDING SAID ETCHED FERROUS METAL MEMBER IN SAID MOLTEN BATH UNTIL THE FERROUS METAL MEMBER IS HEATED TO SAID BATH TEMPERATURE, THEN REMOVING THE FERROUS METAL MEMBER FROM THE BATH, SAID FERROUS METAL MEMBER HAVING THEREON WHEN REMOVED FROM THE BATH
Claim 2
Independent Claim
91 words
A METHOD OF FORMING A COMPOSITE MATAL ARTICLE WHICH COMPRISES ACID ETCHING A FERROUS METAL MEMBER, IMMERSING SAID ETCHED FERROUS METAL MEMBER IN A MOLTEN ZINC BASE ALLOY BATH CONTAINING SMALL AMOUNTS OF EACH OF TIN AND ALUMINUM, SAID BATH BEING AT A TEMPERATURE ON THE ORDER OF 1300*-1420* F., HOLDING SAID ETCHED FERROUS METAL MEMBER IN SAID MOLTEN BATH UNTIL THE FERROUS METAL MEMBER IS HEATED TO SAID BATH TEMPERATURE, THEN REMOVING THE FERROUS METAL MEMBER FROM THE BATH, SAID FERROUS METAL MEMBER HAVING THEREON WHEN REMOVED FROM THE BATH
References Cited (Backward Citations)
US1807689A
Cited
US1755559A
Cited
US1830652A
Cited
US2123181A
Cited
US2197622A
Cited
US2265243A
Cited
US2326418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |