US2813730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose coupling with contractable metallic wire sleeve
Assignee: Weatherhead Co
•
Filing: 1954-07-14
•
Granted: 1957-11-19
•
Expires: 1974-07-14
Abstract
No abstract record available.
Inventors
- 👤 Louis B Courtot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:12
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1294921A
Cited
US1630895A
Cited
US2198996A
Cited
US2279237A
Cited
US2681781A
Cited
US2614304A
Cited
US2750210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |