Patent US3199541A successfully refreshed from Google Patents.
US3199541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking strip flexible hose
Assignee: Flexible Tubing Corp
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Filing: 1963-04-03
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Granted: 1965-08-10
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Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Charles G Richitelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:01
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/133; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/78; B29C53/785; F16L11/11; F16L11/111; F16L11/14; F16L11/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49876
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN A FLEXIBLE HOSE WHEREIN AT LEAST ONE ELONGATED STRIP IN HELICALLY WOUND INTO TUBULAR FORM, INCLUDING MALE AND FEMALE CONNECTING ELEMENTS FORMED ON THE RESPECTIVE MARGINAL PORTIONS OF SAID STRIP, AND ONE MARGINAL PORTION OF SAID STRIP OVERLAPPING THE ADJACENT MARGINAL PORTION OF AN ADJOINING CONVOLUTION TO INTERCLOCK THE MALE AND FEMALE CONNECTING ELEMENTS, THE IMPROVEMENT COMPRISING AT LEAST ONE OF SAID MALE AND FEMALE ELEMENTS HAVING A COMPOSITE STRUCTURAL FORMATION DEFINED IN PART BY SAID STRIP AND IN PART BY A RESINOUS PLASTIC MATERIAL SUBSTANTIALLY STIFFER THAN THE STRIP MATERIAL TO PROVIDE A STIFF REINFORCING ELEMENT WITHIN THE RESULTING HELICAL JOINT FORMED BETWEEN ADJACENT CONVOLUTIONS.
Claim 2
Dependent Claim
107 words
IN A FLEXIBLE HOSE WHEREIN AT LEAST ONE ELONGATED STRIP IN HELICALLY WOUND INTO TUBULAR FORM, INCLUDING MALE AND FEMALE CONNECTING ELEMENTS FORMED ON THE RESPECTIVE MARGINAL PORTIONS OF SAID STRIP, AND ONE MARGINAL PORTION OF SAID STRIP OVERLAPPING THE ADJACENT MARGINAL PORTION OF AN ADJOINING CONVOLUTION TO INTERCLOCK THE MALE AND FEMALE CONNECTING ELEMENTS, THE IMPROVEMENT COMPRISING AT LEAST ONE OF SAID MALE AND FEMALE ELEMENTS HAVING A COMPOSITE STRUCTURAL FORMATION DEFINED IN PART BY SAID STRIP AND IN PART BY A RESINOUS PLASTIC MATERIAL SUBSTANTIALLY STIFFER THAN THE STRIP MATERIAL TO PROVIDE A STIFF REINFORCING ELEMENT WITHIN THE RESULTING HELICAL JOINT FORMED BETWEEN ADJACENT CONVOLUTIONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |