Patent US2473118A successfully refreshed from Google Patents.
US2473118A
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Coupling for tubes
Assignee: Parker Appliance Co
•
Filing: 1944-06-30
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Granted: 1949-06-14
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Expires: 1964-06-30
Abstract
No abstract record available.
Inventors
- 👤 John N Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:30
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/10; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1866914A
Cited
US2182811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |