US2944840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube coupling having a reinforced sealing and locking ring
Assignee: Individual
•
Filing: 1960-02-04
•
Granted: 1960-07-12
•
Expires: 1980-02-04
Abstract
No abstract record available.
Inventors
- 👤 Sumner D Wiltse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:58
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
BE501139A
Cited
US989177A
Cited
US1117856A
Cited
AU1922629A
Cited
US1984806A
Cited
US2040155A
Cited
US2111956A
Cited
US2253018A
Cited
US2388633A
Cited
US2463235A
Cited
US2479960A
Cited
US2571348A
Cited
DE899580C
Cited
US2590565A
Cited
US2669465A
Cited
US2702200A
Cited
US2812958A
Cited
FR1138633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |