US3253716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane having articulated boom
Assignee: STRATTON EQUIPMENT CO
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Filing: 1964-06-15
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Granted: 1966-05-31
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Ronald R Stratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:49
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/54; B60; B60P; B60P1/00; B60P1/54; B60P1/5404; B60P1/5423; B60P1/5433
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
156 words
A CRANE COMPRISING A SUPPORT; AND AN ARTICULATED BOOM CARRIED BY SAID SUPPORT, SAID BOOM COMPRISING FIRST, SECOND AND THIRD ARMS, THE FIRST OF SAID ARMS BEING PIVOTALLY CONNECTED TO SAID SUPPORT, THE SECOND ARM BEING PIVOTALLY CONNECTED TO SAID FIRST ARM, AND THE THIRD ARM BEING PIVOTALLY CONNECTED TO SAID SECOND ARM, SAID FIRST SECOND AND THIRD ARMS BEING DISPOSED IN GENERALLY Z-SHAPE RELATIONSHIP, FIRST FORCE-EXERTING MEANS DISPOSED BETWEEN SAID SUPPORT AND FIRST AND TO MOVE SAID ARM PIVOTALLY RELATIVELY TO SAID SUPPORT, SECOND FORCE-EXERTING MEANS DISPOSED BETWEEN SAID FIRST AND SECOND ARMS TO MOVE SAID SECOND ARM PIVOTALLY RELATIVELY TO SAID FIRST ARM, AND THIRD FORCE-EXERTING MEANS DISPOSED BETWEEN SAID SECOND AND THIRD ARMS TO MOVE SAID THIRD ARM PIVOTALLY RELATIVELY TO SAID SECOND ARM, SAID FIRST AND SECOND FORCE-EXERTING MEANS BEING ON OPPOSITE SIDES OF SAID FIRST ARM, AND SAID SECOND AND THIRD FORCE-EXERTING MEANS BEING ON OPPOSITE SIDES OF SAID SECOND ARM.
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |