US3244433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor step attachment
Assignee: Individual
•
Filing: 1964-09-25
•
Granted: 1966-04-05
•
Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Jerome W Grigsby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:41
CPC Classifications
B; B60; B60R; B60R3/00; B60R3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A TRACTOR STEP ATTACHMENT COMPRISING A STEP ASSEMBLY, SAID STEP ASSEMBLY INCLUDING AN UPSTANDING SHANK PORTION AND MEANS DEFINING A HORIZONTALLY ENLARGED ABUTMENT ON A LOWER END PORTION OF SAID SHANK, THE UPPER END OF SAID SHANK INCLUDING MEANS ADAPTED TO HAVE A THRUST FASTENER SECURED THERETO, WHEREBY SAID SHANK IS ADAPTED TO BE PASSED UPWARDLY THROUGH AN UPSTANDING SLEEVE SUPPORTED FROM A TRACTOR AND TO BE SECURED THROUGH SAID SLEEVE BY MEANS OF SAID FASTENER WITH SAID SLEEVE CLAMPED BETWEEN SAID FASTERNER AND SAID ABUTMENT.
Claim 2
Dependent Claim
86 words
A TRACTOR STEP ATTACHMENT COMPRISING A STEP ASSEMBLY, SAID STEP ASSEMBLY INCLUDING AN UPSTANDING SHANK PORTION AND MEANS DEFINING A HORIZONTALLY ENLARGED ABUTMENT ON A LOWER END PORTION OF SAID SHANK, THE UPPER END OF SAID SHANK INCLUDING MEANS ADAPTED TO HAVE A THRUST FASTENER SECURED THERETO, WHEREBY SAID SHANK IS ADAPTED TO BE PASSED UPWARDLY THROUGH AN UPSTANDING SLEEVE SUPPORTED FROM A TRACTOR AND TO BE SECURED THROUGH SAID SLEEVE BY MEANS OF SAID FASTENER WITH SAID SLEEVE CLAMPED BETWEEN SAID FASTERNER AND SAID ABUTMENT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |