Patent US5621873A successfully refreshed from Google Patents.
Patent US2535320A successfully refreshed from Google Patents.
US2535320A
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US
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Tool joint
Assignee: Chicago Pneumatic Tool Co LLC
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Filing: 1944-04-07
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Granted: 1950-12-26
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Expires: 1964-04-07
Abstract
No abstract record available.
Inventors
- 👤 Richardson Julius Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:58
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/004; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US347060A
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US414686A
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US1332888A
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US1265706A
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US1594579A
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US1857912A
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US2054118A
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US2181343A
Cited
US2294289A
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US2315357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |