US3508766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded joint for pipe having internal coating
Assignee: YUBOSCOPE Inc
•
Filing: 1968-10-25
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Granted: 1970-04-28
•
Expires: 1988-10-25
Abstract
No abstract record available.
Inventors
- 👤 Newlin W Kessler
- 👤 Orville C Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:01
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; F16L13/0254; F16L13/0263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2014612A
Cited
FR795605A
Cited
FR883048A
Cited
DE875743C
Cited
US2819517A
Cited
US2762904A
Cited
US3266820A
Cited
GB1022510A
Cited
FR1431797A
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 |