Patent US2707388A successfully refreshed from Google Patents.
US2707388A
Expired / Lapsed
US
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Pipe testing machines
Assignee: Hydropress Inc
•
Filing: 1950-05-06
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Granted: 1955-05-03
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Expires: 1970-05-06
Abstract
No abstract record available.
Inventors
- 👤 Francis J Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:32
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/022; F; F16; F16L; F16L55/00; F16L55/10
Claims Analysis
Total Claims: 0
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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) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |