Patent US3138393A successfully refreshed from Google Patents.
US3138393A
Expired / Lapsed
US
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Coupling for substantially axially fixed conduits
Assignee: Individual
•
Filing: 1960-06-20
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Granted: 1964-06-23
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 George E Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:22
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23; F16B; F16B2200/00; F16B2200/50; F16B2200/503; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T403/00; Y10T403/59; Y10T403/599
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US979433A
Cited
US1812553A
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US1901973A
Cited
US2255333A
Cited
US2318112A
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US2643140A
Cited
US2962303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |