US3400574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for testing pipelines
Assignee: JUDD PATRICIA ANN
•
Filing: 1966-10-31
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Granted: 1968-09-10
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Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Harold W Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:21
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2853; G01M3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3342061A
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US3338088A
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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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |