Patent US3217403A successfully refreshed from Google Patents.
US3217403A
Expired / Lapsed
US
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Method of spot-welding phosphated metal articles
Assignee: MAN-GILL CHEMICAL COMPANY AN OH CORP
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Filing: 1961-10-16
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Granted: 1965-11-16
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Expires: 1981-10-16
Abstract
No abstract record available.
Inventors
- 👤 Pekar Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:10
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/226; C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/12; C23C22/13; C23C22/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD F PREPARING A SPOT-WELDED, PHOSPHATED METAL ARTICLE WHICH COMPRISES (A) PHOSPHATING A METAL ARTICLE WITH AN AQUEOUS POHOPHATING SOLUTION CONTAINING AS ESSENTIAL INGREDIENTS ZINC ION, PHOSPHOATE ION, NITRATE ION, AND A CATION SELECTED FROM THE GROUP CONSISTING OF LITHIUM, BERYLLIUM, MAGNESIUM, CALCIUM, STRONTIUM, CADMIUM, AND BARIU, TO FORM THEREON AN INTEGRAL PHOSPHATE COATING, AND THEN (B) SPOT-WELDING SAID PHOSPHATED METAL ARTICLE.
Claim 2
Independent Claim
63 words
A METHOD F PREPARING A SPOT-WELDED, PHOSPHATED METAL ARTICLE WHICH COMPRISES (A) PHOSPHATING A METAL ARTICLE WITH AN AQUEOUS POHOPHATING SOLUTION CONTAINING AS ESSENTIAL INGREDIENTS ZINC ION, PHOSPHOATE ION, NITRATE ION, AND A CATION SELECTED FROM THE GROUP CONSISTING OF LITHIUM, BERYLLIUM, MAGNESIUM, CALCIUM, STRONTIUM, CADMIUM, AND BARIU, TO FORM THEREON AN INTEGRAL PHOSPHATE COATING, AND THEN (B) SPOT-WELDING SAID PHOSPHATED METAL ARTICLE.
References Cited (Backward Citations)
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Cited
US1872507A
Cited
US2059783A
Cited
US2296844A
Cited
GB570033A
Cited
US2499261A
Cited
US2970204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |