US3089580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor device
Assignee: Joy Manufacturing Co
•
Filing: 1960-05-23
•
Granted: 1963-05-14
•
Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Lemoyne W Dilgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:02
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A CONVEYOR DEVICE HAVING AN ELONGATED FLEXIBLE BELT SUPPORTED IN THE FORM OF A CATENARY FOR CONVEYING MATERIAL OVER A SURFACE, A SUPPORT MEANS COMPRISING: A PAIR OF LATERALLY SPACED LINKAGES HAVING LOWER, INTERMEDIATE, AND UPPER LINK PORTIONS; SAID LINK PORTIONS HAVING ONLY A FIXED PATH OF MOVEMENT WITH RESPECT TO EACH OTHER; RESPECTIVELY, EXTENDING ABOVE SUCH A SURFACE; SAID INTERMEDIATE PORTIONS BEIGN MOUNTED FOR ARCUATE MOVEMENT
Claim 2
Dependent Claim
68 words
IN A CONVEYOR DEVICE HAVING AN ELONGATED FLEXIBLE BELT SUPPORTED IN THE FORM OF A CATENARY FOR CONVEYING MATERIAL OVER A SURFACE, A SUPPORT MEANS COMPRISING: A PAIR OF LATERALLY SPACED LINKAGES HAVING LOWER, INTERMEDIATE, AND UPPER LINK PORTIONS; SAID LINK PORTIONS HAVING ONLY A FIXED PATH OF MOVEMENT WITH RESPECT TO EACH OTHER; RESPECTIVELY, EXTENDING ABOVE SUCH A SURFACE; SAID INTERMEDIATE PORTIONS BEIGN MOUNTED FOR ARCUATE MOVEMENT
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |