US3368696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic crane boom
Assignee: SARGENT ENGINEERING Corp
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Filing: 1966-10-17
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Granted: 1968-02-13
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Roger L Johnston
- 👤 Kenneth O Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:34
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
113 words
A TELESCOPIC HYDRAULICALLY EXTENSIBLE BOOM FOR A CRANE OR THE LIKE HAVING AT LEAST THREE SECTIONS COMPRISING: (A) A FIRST SECTION, (B) A SECOND SECTION TELESCOPICALLY RECEIVED IN THE FIRST SECTION, (C) A LINEARLY EXTENDIBLE POWER MEANS POSITIONED INSECTION, (D) A LINEARLY EXTENDIBLE POWER MEANS POSITIONED INTERIORLY OF SAID FLY SECTION, WHEN THE FLY SECTION IS TELESCOPED WITHIN SAID SECOND SECTION, AND CONNECTED AT ONE END TO THE INNER END OF SAID FIRST SECTION, AND (E) MEANS FOR DETACHABLY CONNECTING THE OPPOSITE END OF SAID POWER MEANS EITHER TO THE OUTER END OF SAID FLY SECTION OR TO THE INNER END OF SAID FLY SECTION AND THE OUTER END OF SAID SECOND SECTION.
Claim 2
Dependent Claim
113 words
A TELESCOPIC HYDRAULICALLY EXTENSIBLE BOOM FOR A CRANE OR THE LIKE HAVING AT LEAST THREE SECTIONS COMPRISING: (A) A FIRST SECTION, (B) A SECOND SECTION TELESCOPICALLY RECEIVED IN THE FIRST SECTION, (C) A LINEARLY EXTENDIBLE POWER MEANS POSITIONED INSECTION, (D) A LINEARLY EXTENDIBLE POWER MEANS POSITIONED INTERIORLY OF SAID FLY SECTION, WHEN THE FLY SECTION IS TELESCOPED WITHIN SAID SECOND SECTION, AND CONNECTED AT ONE END TO THE INNER END OF SAID FIRST SECTION, AND (E) MEANS FOR DETACHABLY CONNECTING THE OPPOSITE END OF SAID POWER MEANS EITHER TO THE OUTER END OF SAID FLY SECTION OR TO THE INNER END OF SAID FLY SECTION AND THE OUTER END OF SAID SECOND SECTION.
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |