Patent US2565547A successfully refreshed from Google Patents.
US2565547A
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US
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Safety joint tool
Assignee: Guiberson Corp
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Filing: 1950-01-18
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Granted: 1951-08-28
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Expires: 1970-01-18
Abstract
No abstract record available.
Inventors
- 👤 Clifton R Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:36
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/06; Y; Y10; Y10S; Y10S285/00; Y10S285/922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |