Patent US2528474A successfully refreshed from Google Patents.
US2528474A
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US
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Spring loaded tool joint dressing tool
Assignee: Hughes Tool Co
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Filing: 1945-10-22
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Granted: 1950-10-31
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Expires: 1965-10-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley C Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:19
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/161; B23B5/163; E; E21; E21B; E21B17/00; E21B17/006; Y; Y10; Y10T; Y10T29/00; Y10T29/44; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T82/00; Y10T82/25; Y10T82/2522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US235373A
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US353485A
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US584439A
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US913089A
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US1412058A
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US1526950A
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US1934729A
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US2106201A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |