US2532632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing and tubing joint
Assignee: Hydril LLC
•
Filing: 1948-10-04
•
Granted: 1950-12-05
•
Expires: 1968-10-04
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Macarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; F16L15/004; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; E21B17/0423; E21B17/0426; F16L15/006; F16L15/007; F16L15/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US122131A
Cited
US1562372A
Cited
US1889872A
Cited
US1927656A
Cited
US2091906A
Cited
US2087185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |