US3014501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible tubes
Assignee: Hoechst AG
•
Filing: 1957-08-13
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Granted: 1961-12-26
•
Expires: 1977-08-13
Abstract
No abstract record available.
Inventors
- 👤 Jacobi Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/096; B; B29; B29C; B29C53/00; B29C53/22; B29C53/30; B29C53/56; B29C53/562; B29C53/58; B29C53/581; B31; B31F; B31F1/00; B31F1/20; B31F1/205; B29K; B29K2027/00; B29K2027/06; B29L; B29L2023/00; B29L2023/18; B29L2031/00; B29L2031/24; B29L2031/243; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A FLEXIBLE TUBE CONSISTING OF AT LEAST ONE STRIP OF POLYVINYL CHLORIDE HELICALLY WOUND UPON ITSELF IN OVERLAPPING CONVOLUTIONS, A THERMOPLASTIC COATING DISPOSED ON AT LEAST ONE FACE OF SAID STRIP, SAID OVERLAPPING CONVOLUTIONS BEING SEALED TOGETHER BY SAID COATING, SAID TUBE HAVING HELICAL CORRUGATIONS SUBSTANTIALLY PERPENDICULAR TO THE TUBE AXIS.
Claim 2
Dependent Claim
51 words
A FLEXIBLE TUBE CONSISTING OF AT LEAST ONE STRIP OF POLYVINYL CHLORIDE HELICALLY WOUND UPON ITSELF IN OVERLAPPING CONVOLUTIONS, A THERMOPLASTIC COATING DISPOSED ON AT LEAST ONE FACE OF SAID STRIP, SAID OVERLAPPING CONVOLUTIONS BEING SEALED TOGETHER BY SAID COATING, SAID TUBE HAVING HELICAL CORRUGATIONS SUBSTANTIALLY PERPENDICULAR TO THE TUBE AXIS.
References Cited (Backward Citations)
US2633434A
Cited
US2042644A
Cited
GB588858A
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US2688906A
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GB716183A
Cited
US2819180A
Cited
GB719638A
Cited
US2748805A
Cited
US2884957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |