Patent US3477750A successfully refreshed from Google Patents.
US3477750A
Expired / Lapsed
US
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Pipe coupling and means and method of assembly
Assignee: Individual
•
Filing: 1967-10-30
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Granted: 1969-11-11
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Expires: 1987-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jonathan S Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:59
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/146; B; B21; B21D; B21D39/00; B21D39/04; F16L13/141; F16L13/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1911775A
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US2613959A
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US2926029A
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GB796065A
Cited
US2814514A
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US2805591A
Cited
US3149861A
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US3002770A
Cited
US3343252A
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US3210102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |