US2854056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating metal strip for the formation of venetian blind slats and the like
Assignee: Acme Steel Co
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Filing: 1951-12-08
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Granted: 1958-09-30
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Expires: 1971-12-08
Abstract
No abstract record available.
Inventors
- 👤 Stanius Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:56
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/06; B21D5/08
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |