Patent US3202530A successfully refreshed from Google Patents.
US3202530A
Expired / Lapsed
US
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Method of forming a composite metal article
Assignee: Olin Corp
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Filing: 1961-11-30
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Granted: 1965-08-24
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Expires: 1981-11-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Wade Wolfe
- 👤 James F Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:33
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12465; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD OF SURFACE ALLOYING A METAL SHEET COMPRISING: (A) PROVIDING A COPPER SHEET, (B) COLD WORKING A SURFACE LAYER OF SAID SHEET TO IMPART A METASTABLE FORMATION THERETO CAPABLE OF FORMING SURFACE ALLOYS WITH METALS DEPOSITED THEREON, (C) DEPOSITING AN ALLOYING ELEMENT CONSISTING ESSENTIALLY OF A METAL SELECTED FROM THE GROUP CONSISTING OF SILICON, TITANIUM, ALUMINUM, CHORMIUM, NICKEL, ZINC, TIN, LEAD AND GOLD TO SAID SHEET WHILE SAID SURFACE LAYER THEREOF IS IN SAID METASTABLE STATE WITHIN FOUR HOURS OF SAID COLD WORKING, (D) MAINTAINING INTIAMTE CONTACT BETWEEN SAID SHEET AND SAID ALLOYING ELEMENT WHILE SIMULTANEOUSLY CONTINUING SAID DEPOSITION OF SAID ALLOYING ELEMENT UNTIL SAID ELEMENT HAS ALLOYED WITH SAID SHEET TO THE DESIRED LENGTH.
Claim 2
Independent Claim
116 words
A METHOD OF SURFACE ALLOYING A METAL SHEET COMPRISING: (A) PROVIDING A COPPER SHEET, (B) COLD WORKING A SURFACE LAYER OF SAID SHEET TO IMPART A METASTABLE FORMATION THERETO CAPABLE OF FORMING SURFACE ALLOYS WITH METALS DEPOSITED THEREON, (C) DEPOSITING AN ALLOYING ELEMENT CONSISTING ESSENTIALLY OF A METAL SELECTED FROM THE GROUP CONSISTING OF SILICON, TITANIUM, ALUMINUM, CHORMIUM, NICKEL, ZINC, TIN, LEAD AND GOLD TO SAID SHEET WHILE SAID SURFACE LAYER THEREOF IS IN SAID METASTABLE STATE WITHIN FOUR HOURS OF SAID COLD WORKING, (D) MAINTAINING INTIAMTE CONTACT BETWEEN SAID SHEET AND SAID ALLOYING ELEMENT WHILE SIMULTANEOUSLY CONTINUING SAID DEPOSITION OF SAID ALLOYING ELEMENT UNTIL SAID ELEMENT HAS ALLOYED WITH SAID SHEET TO THE DESIRED LENGTH.
References Cited (Backward Citations)
US1457370A
Cited
US1637033A
Cited
US2073783A
Cited
US2149656A
Cited
US2178251A
Cited
US2375669A
Cited
US2585128A
Cited
US2630780A
Cited
US2483424A
Cited
US2683436A
Cited
US2722490A
Cited
US2835630A
Cited
US2689785A
Cited
US2812270A
Cited
US2938841A
Cited
US2881518A
Cited
US3054175A
Cited
US2863025A
Cited
US2871550A
Cited
US3055088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |