US3393089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming improved zinc-aluminum coating on ferrous surfaces
Assignee: Bethlehem Steel Corp
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Filing: 1967-03-30
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Granted: 1968-07-16
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Angelo R Borzillo
- 👤 James B Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:46
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/013; C; C23; C23C; C23C2/00; C23C2/04; C23C2/06; C23C2/12; C23C2/34; C23C2/36; C23C2/38; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 0
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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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |