US3000254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion bolt means with thread means to couple the expansion shell to the bolt
Assignee: Bethlehem Steel Corp
•
Filing: 1957-10-04
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Granted: 1961-09-19
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Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Carl C Hottenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:53
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/04; F16B13/06; F16B13/063; F16B13/066; E; E21; E21D; E21D21/00; E21D21/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US674074A
Cited
US932398A
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US1153797A
Cited
US1964427A
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GB444623A
Cited
US2602365A
Cited
US2639179A
Cited
US2625071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |