US2565460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure testing of pipe
Assignee: Republic Steel Corp
•
Filing: 1947-12-15
•
Granted: 1951-08-21
•
Expires: 1967-12-15
Abstract
No abstract record available.
Inventors
- 👤 William H Woodlief
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:00
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2846; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53687
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US640881A
Cited
US1187665A
Cited
US2122760A
Cited
US2183974A
Cited
US2231807A
Cited
US2242658A
Cited
US2293107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |