US2813803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of composite metallic material
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1956-04-04
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Granted: 1957-11-19
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Howard J Homer
- 👤 John R Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:00
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/02; C23C16/0272; C23C16/0281; C23C16/06; C23C16/18; C23C28/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/9335; Y10S428/936; Y10S428/938; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583; Y10T428/1259; Y10T428/12701; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12847; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN A METHOD OF PRODUCING CLADDED ARTICLES CONPRISING THE STEPS OF SUPERPOSING, BY DEPOSITING LEAD FROM THE GASEOUS STATE OF A LEAD BEARING COMPOUND, A THIN LEAD PLATE UPON AN OXIDIC SURFACE OF AN ALUMINUM BODY WHILE THE BODY IS IN A NON-OXIDIZING ATMOSPHERE AND AT APPROXIMATELY A TEMPERATURE WHICH IS NORMALLY SUFFICIENT TO RENDER THE LEAD PLASTIC, AND WHILE THE LEAD IS HEATED AND IN THE NON-OXIDIZING ATMOSPHERE IMPOSING A LAYER OF A CORROSION-RESISTANT METAL OTHER THAN LEAD THERETO.
Claim 2
Dependent Claim
80 words
IN A METHOD OF PRODUCING CLADDED ARTICLES CONPRISING THE STEPS OF SUPERPOSING, BY DEPOSITING LEAD FROM THE GASEOUS STATE OF A LEAD BEARING COMPOUND, A THIN LEAD PLATE UPON AN OXIDIC SURFACE OF AN ALUMINUM BODY WHILE THE BODY IS IN A NON-OXIDIZING ATMOSPHERE AND AT APPROXIMATELY A TEMPERATURE WHICH IS NORMALLY SUFFICIENT TO RENDER THE LEAD PLASTIC, AND WHILE THE LEAD IS HEATED AND IN THE NON-OXIDIZING ATMOSPHERE IMPOSING A LAYER OF A CORROSION-RESISTANT METAL OTHER THAN LEAD THERETO.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |