US2934935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast tensioning head for anchoring tensioning members, preferably for prestressed concrete
Assignee: Philipp Holzmann AG
•
Filing: 1957-01-22
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Granted: 1960-05-03
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Zerna Wolfgang
- 👤 Muhe Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:54
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08; E04C5/12; F; F16; F16B; F16B2200/00; F16B2200/40; F16B2200/406; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3998; Y10T403/00; Y10T403/47; Y10T403/471
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA514487A
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US1214709A
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US1618147A
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US2449276A
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US2596495A
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AT175049B
Cited
US2751660A
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DE879293C
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US2676509A
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US2789458A
Cited
US2869214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |