US2684860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick lock ring seal coupling for conduits
Assignee: Individual
•
Filing: 1951-03-31
•
Granted: 1954-07-27
•
Expires: 1971-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Rafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:42
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/24; F16L37/244; F16L37/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US170457A
Cited
US238437A
Cited
US458636A
Cited
US767843A
Cited
US2394364A
Cited
US2449659A
Cited
US2574625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |