US3155328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined trench hoe and crusher ball machine
Assignee: Longley Construction Co Inc
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Filing: 1963-07-12
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Granted: 1964-11-03
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Lester A Longley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/427; E02F3/30; E02F3/32; E02F3/96; E02F3/963; E02F3/964
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN EXCAVATING MACHINE, COMPRISING A MOBILE SUPPORT; POWER-OPERATED TRENCH HOE MECHANISM MOUNTED UPON SAID SUPPORT AND OPERABLE TO EXCAVATE A TRENCH, CRUSHER BALL HOIST MEANS CARRIED BY SAID SUPPORT AND OPERABLE SELECTIVELY AND INDEPENDENTLY OF THE TRENCH HOE MECHANISM FOR ELEVATING AND DROPPING A CRUSHER BALL TO CRUSH HARD MATERIAL IN ADVANCE OF THE TRENCH HOE MECHANISM SO THAT THE LATTER IS CAPABLE OF EXCAVATING SAID TRENCH, SAID TRENCH HOE MECHANISM INCLUDING A BOOM AND BUCKET MECHANISM PIVOTALLY CARRIED BY THE BOOM AND ADAPTED TO REST ON THE GROUND AS A SUPPORTING STRUT THEREFOR, AND MEANS ON THE BOOM SUPPORTING THE CRUSHER BALL
Claim 2
Dependent Claim
103 words
AN EXCAVATING MACHINE, COMPRISING A MOBILE SUPPORT; POWER-OPERATED TRENCH HOE MECHANISM MOUNTED UPON SAID SUPPORT AND OPERABLE TO EXCAVATE A TRENCH, CRUSHER BALL HOIST MEANS CARRIED BY SAID SUPPORT AND OPERABLE SELECTIVELY AND INDEPENDENTLY OF THE TRENCH HOE MECHANISM FOR ELEVATING AND DROPPING A CRUSHER BALL TO CRUSH HARD MATERIAL IN ADVANCE OF THE TRENCH HOE MECHANISM SO THAT THE LATTER IS CAPABLE OF EXCAVATING SAID TRENCH, SAID TRENCH HOE MECHANISM INCLUDING A BOOM AND BUCKET MECHANISM PIVOTALLY CARRIED BY THE BOOM AND ADAPTED TO REST ON THE GROUND AS A SUPPORTING STRUT THEREFOR, AND MEANS ON THE BOOM SUPPORTING THE CRUSHER BALL
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |