Patent US3517701A successfully refreshed from Google Patents.
US3517701A
Expired / Lapsed
US
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Repair fitting
Assignee: Pipe Line Dev Co
•
Filing: 1968-04-08
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Granted: 1970-06-30
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:07
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/179
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234799A
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US320771A
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US410816A
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CA666301A
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US793589A
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US881022A
Cited
US2440864A
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US2700988A
Cited
US2968840A
Cited
FR1488423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |