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US2754064A
Expired / Lapsed
US
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Steel ties
Assignee: Dortmund Hoerder Huettenunion AG
•
Filing: 1952-09-09
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Granted: 1956-07-10
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Expires: 1972-09-09
Abstract
No abstract record available.
Inventors
- 👤 Voltz Paul
- 👤 Metzger Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:23
CPC Classifications
E; E01; E01B; E01B23/00; E01B23/10; E01B23/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1190824A
Cited
US1383423A
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US2085829A
Cited
DE715659C
Cited
US2438424A
Cited
US2508032A
Cited
US2546232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |