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US2832253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion bolt having expanding jaws secured to elastic cup-shaped member
Assignee: Individual
•
Filing: 1952-03-01
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Granted: 1958-04-29
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Expires: 1972-03-01
Abstract
No abstract record available.
Inventors
- 👤 Allimann Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:10
CPC Classifications
E; E21; E21D; E21D21/00; E21D21/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406565A
Cited
US1110797A
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US1372708A
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GB402375A
Cited
US2028328A
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FR767444A
Cited
US2051251A
Cited
US2377077A
Cited
US2570003A
Cited
US2667099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |