US2863678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for double-flared tubes
Assignee: Individual
•
Filing: 1955-12-27
•
Granted: 1958-12-09
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gordon Benjamin
- 👤 Lysle E Somers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:44
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US196084A
Cited
US196904A
Cited
US654735A
Cited
US1718662A
Cited
US1680080A
Cited
US1838180A
Cited
US1949668A
Cited
US2011433A
Cited
GB416733A
Cited
US2290890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |