US3011807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flareless tube coupling with means allowing visual inspection
Assignee: Parker Hannifin Corp
•
Filing: 1955-12-02
•
Granted: 1961-12-05
•
Expires: 1975-12-02
Abstract
No abstract record available.
Inventors
- 👤 Cowdrey Frank Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:29
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
NL38350C
Cited
US690517A
Cited
GB110622A
Cited
US2455667A
Cited
US2460635A
Cited
US2738994A
Cited
US2701149A
Cited
DE914921C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |