US2711331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-tightening conduit couplings
Assignee: Individual
•
Filing: 1949-07-08
•
Granted: 1955-06-21
•
Expires: 1969-07-08
Abstract
No abstract record available.
Inventors
- 👤 Temple Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:15
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US656187A
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US839260A
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US927635A
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US1004678A
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DE602547C
Cited
US2185741A
Cited
GB542135A
Cited
US2383733A
Cited
GB563937A
Cited
US2434358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |