US2466526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for tubes
Assignee: Parker Appliance Co
•
Filing: 1944-04-08
•
Granted: 1949-04-05
•
Expires: 1964-04-08
Abstract
No abstract record available.
Inventors
- 👤 John N Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:56
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/10; F16L19/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB379413A
Cited
GB388859A
Cited
US2021745A
Cited
GB485154A
Cited
US2219053A
Cited
US2232513A
Cited
US2333470A
Cited
US2405822A
Cited
US2343922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |