US2774273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anchor bolt having wedge shaped expander member secured thereto
Assignee: Individual
•
Filing: 1953-09-30
•
Granted: 1956-12-18
•
Expires: 1973-09-30
Abstract
No abstract record available.
Inventors
- 👤 Henry N Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:24
CPC Classifications
E; E21; E21D; E21D21/00; E21D21/008; F; F16; F16B; F16B13/00; F16B13/04; F16B13/08; F16B13/0891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450127A
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US1193436A
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US1311038A
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US922980A
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US1110797A
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US1396398A
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US2143086A
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US2547789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |