Patent US4500172A successfully refreshed from Google Patents.
Patent US3177904A successfully refreshed from Google Patents.
US3177904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor belting
Assignee: Buffalo Weaving and Belting Co
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Filing: 1962-12-14
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Granted: 1965-04-13
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Edmund C Siverson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:52
CPC Classifications
D; D03; D03D; D03D3/00; D03D1/00; D03D1/0094
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
IN AN ARTICLE OF MANUFACTURE ADAPTED FOR USE AS A CONVEYOR BELT AND THE LIKE, A WOVEN BODY HAVING A FACE PLY AND A SECOND PLY ADJACENT SAID FACE PLY AND BINDER YARNS JOINING SAID PLIES, EACH PLY INCLUDING A PLURALITY OF LONGITUDINALLY EXTENDING WRAP THREADS AND A PLURALITY OF PICKS INTERWOVEN THEREWITH, SAID SECOND PLY ALSO INCLUDING AN ADDITIONAL WARP THREAD, SAID ADDITIONAL WARP THREAD HAVING SPACED LENGTHS THEREOF WOVEN INTO SAID SECOND PLY FOR A PREDETERMINED NUMBER OF PICKS OF SUCH SECOND PLY WITH ADJACENT ENDS OF SAID LENGTHS BEING SEPARATED BY A PLURALITY OF PICKS OF SAID SECOND PLY LESS THAN SAID PREDETERMINED NUMBER OF PICKS, SAID ADDITIONAL WARP THREAD CONTINUOUS TO PROVIDE INTERMEDIATE PORTIONS THEREOF JOINING SAID SPACED LENGTHS, EACH OF WHICH INTERMEDIATE PORTIONS PROJECTS FROM SAID SECOND PLY THROUGH SAID FACE PLY BETWEEN A PAIR OF ADJACENT PICKS THEREOF AND PROJECTS BACK THROUGH SAID FACE PLY BETWEEN ANOTHER PAIR OF ADJACENT PICKS THEREOF TO STADDLE AT LEAST A PAIR OF PICKS OF SAID FACE PLY AND FORM A SINGLE OUTSTANDING LOOP.
Claim 2
Dependent Claim
176 words
IN AN ARTICLE OF MANUFACTURE ADAPTED FOR USE AS A CONVEYOR BELT AND THE LIKE, A WOVEN BODY HAVING A FACE PLY AND A SECOND PLY ADJACENT SAID FACE PLY AND BINDER YARNS JOINING SAID PLIES, EACH PLY INCLUDING A PLURALITY OF LONGITUDINALLY EXTENDING WRAP THREADS AND A PLURALITY OF PICKS INTERWOVEN THEREWITH, SAID SECOND PLY ALSO INCLUDING AN ADDITIONAL WARP THREAD, SAID ADDITIONAL WARP THREAD HAVING SPACED LENGTHS THEREOF WOVEN INTO SAID SECOND PLY FOR A PREDETERMINED NUMBER OF PICKS OF SUCH SECOND PLY WITH ADJACENT ENDS OF SAID LENGTHS BEING SEPARATED BY A PLURALITY OF PICKS OF SAID SECOND PLY LESS THAN SAID PREDETERMINED NUMBER OF PICKS, SAID ADDITIONAL WARP THREAD CONTINUOUS TO PROVIDE INTERMEDIATE PORTIONS THEREOF JOINING SAID SPACED LENGTHS, EACH OF WHICH INTERMEDIATE PORTIONS PROJECTS FROM SAID SECOND PLY THROUGH SAID FACE PLY BETWEEN A PAIR OF ADJACENT PICKS THEREOF AND PROJECTS BACK THROUGH SAID FACE PLY BETWEEN ANOTHER PAIR OF ADJACENT PICKS THEREOF TO STADDLE AT LEAST A PAIR OF PICKS OF SAID FACE PLY AND FORM A SINGLE OUTSTANDING LOOP.
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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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |