Patent US3243052A successfully refreshed from Google Patents.
US3243052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic crane boom with longitudinally extending cylinder connector
Assignee: Grove Manufacturing Co
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Filing: 1965-04-08
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Granted: 1966-03-29
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 John L Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:24
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/64; B66C23/70; B66C23/701; B66C23/705
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A BOOM SECTION FOR A PLURAL SECTION HYDRAULICALLY EXTENSIBLE TELESCOPIC BOOM STRUCTURE, INCLUDING MEANS CONNECTED TO ONE END OF SAID BOOM SECTION AND EXTENDING LONGITUDINALLY AND INTERIOR THEREOF AND HAVING AN END TERMINATING ADJACENT THE OPPOSITE END THEREOF, SAID MEANS DISPOSED IN SPACED RELATION TO THE INTERIOR OF SAID BOOM SECTION SUBSTANTIALLY THROUGHOUT IT LENGTH, AND A CONNECTION ON THE TERMINATING END OF SAID MEANS ADAPTED TO RECEIVE ONE END OF A HYDRAULIC CYLINMDER CONNECTED AT ITS OPPOSITE END TO ANOTHER BOOM SECTION ADAPTED TO TELESCOPICALLY RECEIVE SAID BOOM SECTION THEREIN, WHEREBY SAID BOOM SECTION IS ADAPTED TO TELESCOPICALLY RECEIVE THROUGHOUT ITS LENGTH A FURTHER BOOM SECTION THEREIN IN SURROUNDING RELATION TO SAID MEANS.
Claim 2
Dependent Claim
114 words
A BOOM SECTION FOR A PLURAL SECTION HYDRAULICALLY EXTENSIBLE TELESCOPIC BOOM STRUCTURE, INCLUDING MEANS CONNECTED TO ONE END OF SAID BOOM SECTION AND EXTENDING LONGITUDINALLY AND INTERIOR THEREOF AND HAVING AN END TERMINATING ADJACENT THE OPPOSITE END THEREOF, SAID MEANS DISPOSED IN SPACED RELATION TO THE INTERIOR OF SAID BOOM SECTION SUBSTANTIALLY THROUGHOUT IT LENGTH, AND A CONNECTION ON THE TERMINATING END OF SAID MEANS ADAPTED TO RECEIVE ONE END OF A HYDRAULIC CYLINMDER CONNECTED AT ITS OPPOSITE END TO ANOTHER BOOM SECTION ADAPTED TO TELESCOPICALLY RECEIVE SAID BOOM SECTION THEREIN, WHEREBY SAID BOOM SECTION IS ADAPTED TO TELESCOPICALLY RECEIVE THROUGHOUT ITS LENGTH A FURTHER BOOM SECTION THEREIN IN SURROUNDING RELATION TO SAID MEANS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |