US3157545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making continuous lengths of rubberized bias-cut fabric from a tubular length
Assignee: Dunlop Rubber Co Ltd
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Filing: 1962-03-29
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Granted: 1964-11-17
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Expires: 1982-03-29
Abstract
No abstract record available.
Inventors
- 👤 Waldron Felix Walter
- 👤 Green Harold Hurdley
- 👤 Bennett William Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:35
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/42; D; D06; D06H; D06H5/00; D06H7/00; D06H7/04; D06H7/08; B29C; B29C2793/00; B29C2793/009; B29C69/00; B29C69/001; B29C69/002; B29C69/003; B29D2030/385; B29D2030/386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A METHOD OF PRODUCING A TUBULAR LENGTH OF UNVULCANISED RUBBER OR RUBBER COVERED FABRIC MATERIAL COMPRISING CONTINUOUSLY HELICALLY WINDING A STRIP OF SAID MATERIAL UPON A PAIR OF SPACED-APART DRUMS ROTATABLE ON AXES INCLINED ONE WITH RESPECT TO THE OHTER WITH THE EDGES OF SUCCESSIVE TURNS OF SAID STRIP JOINING TO FORM A TUBULAR LENGTH, AND CONTINUOUSLY CONSOLIDATING THE HELICAL JOINT BETWEEN ADJACENT HELICAL TURNS.
Claim 2
Independent Claim
65 words
A METHOD OF PRODUCING A TUBULAR LENGTH OF UNVULCANISED RUBBER OR RUBBER COVERED FABRIC MATERIAL COMPRISING CONTINUOUSLY HELICALLY WINDING A STRIP OF SAID MATERIAL UPON A PAIR OF SPACED-APART DRUMS ROTATABLE ON AXES INCLINED ONE WITH RESPECT TO THE OHTER WITH THE EDGES OF SUCCESSIVE TURNS OF SAID STRIP JOINING TO FORM A TUBULAR LENGTH, AND CONTINUOUSLY CONSOLIDATING THE HELICAL JOINT BETWEEN ADJACENT HELICAL TURNS.
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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |