US3508433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline leak detector
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1968-05-23
•
Granted: 1970-04-28
•
Expires: 1988-05-23
Abstract
No abstract record available.
Inventors
- 👤 William M Bustin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:40
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/26; F16L55/28; F17; F17D; F17D5/00; F17D5/02; F17D5/06; G; G01; G01M; G01M3/00; G01M3/005; G01M3/02; G01M3/04; G01M3/24; G01M3/243; G01M3/246; H; H01; H01H; H01H19/00; H01H19/02; H01H19/08; H01H19/54; H01H19/60; H01H19/63; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2820361A
Cited
US2940302A
Cited
US2884624A
Cited
US2951366A
Cited
US3016457A
Cited
US3085428A
Cited
US3192516A
Cited
US3222635A
Cited
US3224252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |