US3080891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible hose
Assignee: Hoover Co
•
Filing: 1956-08-28
•
Granted: 1963-03-12
•
Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jack E Duff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:02
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/18; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A FLEXIBLE HOSE COMPRISING, A CORRUGATED TUBE OF ELASTOMERIC THERMOPLASTIC AND A CYLINDRICAL SPIRAL COIL OF RESILIENT MATERIAL POSITIONED WITHIN THE OUTER CRESTS OF THE CORRUGATIONS AND WITH THE INNER CRESTS OF THE CORRUGATIONS LYING BETWEEN THE TURNS OF SAID COIL IN THE FORM OF SLACK MATERIAL WHICH UNFOLDS FROM ABOUT THE TURNS OF SAID COIL AS THE HOSE IS EXTENDED, SAID COIL BEING OF A MATERIAL BONDABLE TO SAID TUBE AND BEING BONDED TO THE TIPS OF THE OUTER CRESTS OF THE CORRUGATIONS OVER AN ANGLE OF SUBSTANTIALLY LESS THAN 180* LEAVING THE INNER CRESTS TO UNWRAP FROM ABOUT THE TURNS OF SAID COIL UP TO THE CRESTS OF THE OUTER CORRUGATIONS AS THE HOSE IS EXTENDED.
Claim 2
Dependent Claim
118 words
A FLEXIBLE HOSE COMPRISING, A CORRUGATED TUBE OF ELASTOMERIC THERMOPLASTIC AND A CYLINDRICAL SPIRAL COIL OF RESILIENT MATERIAL POSITIONED WITHIN THE OUTER CRESTS OF THE CORRUGATIONS AND WITH THE INNER CRESTS OF THE CORRUGATIONS LYING BETWEEN THE TURNS OF SAID COIL IN THE FORM OF SLACK MATERIAL WHICH UNFOLDS FROM ABOUT THE TURNS OF SAID COIL AS THE HOSE IS EXTENDED, SAID COIL BEING OF A MATERIAL BONDABLE TO SAID TUBE AND BEING BONDED TO THE TIPS OF THE OUTER CRESTS OF THE CORRUGATIONS OVER AN ANGLE OF SUBSTANTIALLY LESS THAN 180* LEAVING THE INNER CRESTS TO UNWRAP FROM ABOUT THE TURNS OF SAID COIL UP TO THE CRESTS OF THE OUTER CORRUGATIONS AS THE HOSE IS EXTENDED.
References Cited (Backward Citations)
US2508774A
Cited
US2560369A
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US2641302A
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US2782803A
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US2766806A
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US2739616A
Cited
US2961007A
Cited
US2949133A
Cited
US2797730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |