Patent US3519290A successfully refreshed from Google Patents.
US3519290A
Expired / Lapsed
US
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Coupling and seal apparatus for hoses and other tubular conduits for fluids
Assignee: JERALD V DUNLAP
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Filing: 1968-07-29
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Granted: 1970-07-07
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Expires: 1988-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jerald V Dunlap
- 👤 James L D Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:41
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/065; F16L19/0653; F16L19/02; F16L19/0212; F16L19/0218; F16L19/0231
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US184723A
Cited
US658692A
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US869662A
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US1075703A
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US1348277A
Cited
CH170171A
Cited
DE834929C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |