Patent US3154451A successfully refreshed from Google Patents.
US3154451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of reinforced endless rubber belts or bands
Assignee: George Angus and Co Ltd
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Filing: 1960-03-11
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Granted: 1964-10-27
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Expires: 1980-03-11
Abstract
No abstract record available.
Inventors
- 👤 Macdougall Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:49
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/06; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/8016; B29L; B29L2031/00; B29L2031/709; B29L2031/7092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A METHOD OF MANUFACTURING AN ENDLESS BAND OF RUBBER HAVING EMBEDDED THEREIN A HELICAL REINFORCEMENT OF CORD, WHEREIN CORD IS LED TO AND WOUND HELICALLY ONTO A LAYER OF RUBBER CARRIED ON A FIRST ROTATING CYLINDRICAL MANDREL, THE STEPS OF FORMING SAID CORD INTO A HELIX ON A SECOND MANDREL IN LEADING SAID CORD TO SAID FIRST MANDREL AND THEN WINDING CONVOLUTIONS OF CORD SUCCESSIVELY FROM ONE END OF SAID HELIX ONTO SAID LAYER OF RUBBER TO EMBED THE SAME THEREIN.
Claim 2
Dependent Claim
82 words
IN A METHOD OF MANUFACTURING AN ENDLESS BAND OF RUBBER HAVING EMBEDDED THEREIN A HELICAL REINFORCEMENT OF CORD, WHEREIN CORD IS LED TO AND WOUND HELICALLY ONTO A LAYER OF RUBBER CARRIED ON A FIRST ROTATING CYLINDRICAL MANDREL, THE STEPS OF FORMING SAID CORD INTO A HELIX ON A SECOND MANDREL IN LEADING SAID CORD TO SAID FIRST MANDREL AND THEN WINDING CONVOLUTIONS OF CORD SUCCESSIVELY FROM ONE END OF SAID HELIX ONTO SAID LAYER OF RUBBER TO EMBED THE SAME THEREIN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |