US3177053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differentially coated galvanized strip
Assignee: Armco Inc
•
Filing: 1963-02-06
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Granted: 1965-04-06
•
Expires: 1983-02-06
Abstract
No abstract record available.
Inventors
- 👤 Lusa George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:21
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C23; C23C; C23C2/00; C23C2/006; C23C2/0062; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10S428/941; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A GALVANIZED SHEET MATERIAL BEARING UPON ONE OF ITS SIDES A LAYER OF COATING METAL CONSISTING PRINCIPALLY OF ZINC, AND CHARACTERIZED BY A THIN SURFACE ALLOY LAYER LYING BETWEEN THE ZINC AND THE FERROUS BASE, AND CHARACTERIZED ON THE OTHER SIDE BY A THIN LAYER OF ZINC SUBSTANTIALLY WHOLLY ALLOYED WITH THE FERROUS BASE.
Claim 2
Dependent Claim
54 words
A GALVANIZED SHEET MATERIAL BEARING UPON ONE OF ITS SIDES A LAYER OF COATING METAL CONSISTING PRINCIPALLY OF ZINC, AND CHARACTERIZED BY A THIN SURFACE ALLOY LAYER LYING BETWEEN THE ZINC AND THE FERROUS BASE, AND CHARACTERIZED ON THE OTHER SIDE BY A THIN LAYER OF ZINC SUBSTANTIALLY WHOLLY ALLOYED WITH THE FERROUS BASE.
References Cited (Backward Citations)
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Cited
US2719820A
Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |