US3485654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing metal coated metallic substrates
Assignee: National Steel Corp
•
Filing: 1966-03-15
•
Granted: 1969-12-23
•
Expires: 1986-03-15
Abstract
No abstract record available.
Inventors
- 👤 Leslie D Mcgraw
- 👤 Robert B Reif
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:30
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/082; C23C24/085; C23C24/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2990293A
Cited
US3197324A
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US3019126A
Cited
US3248253A
Cited
US3323933A
Cited
US3382085A
Cited
US3336903A
Cited
US3327948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |