US3275299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manhole cover handling device
Assignee: Aztec Manufacturing Co
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Filing: 1964-06-18
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Granted: 1966-09-27
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Allan D Meshew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:43
CPC Classifications
B; B66; B66F; B66F19/00; B66F19/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A DEVICE FOR DISENGAGING A MANHOLE COVER FROM ITS SEATED POSTION, LIFTING THE COVER AND TRUNDLING IT TO ANOTHER LOCATION COMPRISING: (A) AN ELONGATED FROM HAVING A FRONT END AND A REAR END AND SHAPED TO PROVIDE A GROUND-CONTACTING FULCRIUM POINT THEREBETWEEN; (B) A COVER LATCH ASSEMBLY CARRIED ON THE FRONT END OF THE FRAME COMPRISING A DOWNWARDLY DEPENDING LATCH STUD, HAVING A FORWARDLY FACING COVER LATCH ON ITS LOWEER ENDS, SAID LATCH STUD BEING ADAPTED TO BE INSERTED THROUGH A HOLE IN THE EDGE AREA OF THE MANHOLE COVER AND LATCH UNDER THE LOWER SURFACE THEREOF; (C) A WHEEL ASSEMBLY CARRIED ON THE REAR END OF THE FRAME AND POSITIONED SUCH THAT WHEN THE COVER LATCH IS IN THE COVER DISENGAGING POSITION THE WHEELS ARE SPACED FROM THE GROUND; AND
Claim 2
Independent Claim
131 words
A DEVICE FOR DISENGAGING A MANHOLE COVER FROM ITS SEATED POSTION, LIFTING THE COVER AND TRUNDLING IT TO ANOTHER LOCATION COMPRISING: (A) AN ELONGATED FROM HAVING A FRONT END AND A REAR END AND SHAPED TO PROVIDE A GROUND-CONTACTING FULCRIUM POINT THEREBETWEEN; (B) A COVER LATCH ASSEMBLY CARRIED ON THE FRONT END OF THE FRAME COMPRISING A DOWNWARDLY DEPENDING LATCH STUD, HAVING A FORWARDLY FACING COVER LATCH ON ITS LOWEER ENDS, SAID LATCH STUD BEING ADAPTED TO BE INSERTED THROUGH A HOLE IN THE EDGE AREA OF THE MANHOLE COVER AND LATCH UNDER THE LOWER SURFACE THEREOF; (C) A WHEEL ASSEMBLY CARRIED ON THE REAR END OF THE FRAME AND POSITIONED SUCH THAT WHEN THE COVER LATCH IS IN THE COVER DISENGAGING POSITION THE WHEELS ARE SPACED FROM THE GROUND; AND
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |