US2557764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating strip steel with a protective metal coating
Assignee: HENRY A ROEMER
•
Filing: 1947-03-06
•
Granted: 1951-06-19
•
Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 Robert F Renkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:29
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/34; C23C2/36; C23C2/38; C23C2/04; C23C2/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374A
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US190834A
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US645520A
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US1738748A
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US2126578A
Cited
GB484983A
Cited
US2441776A
Cited
US2304069A
Cited
US2428523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |