US2685221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bolt sleeve expanded by wedge and wedging threads
Assignee: Joy Manufacturing Co
•
Filing: 1949-10-06
•
Granted: 1954-08-03
•
Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Barrett Arthur Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:47
CPC Classifications
E; E21; E21D; E21D21/00; E21D21/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US781110A
Cited
US895158A
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FR476982A
Cited
US1523463A
Cited
FR827301A
Cited
USRE22926E
Cited
GB569774A
Cited
US2386732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |