US3245559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension housing for dipper-stick of backhoe
Assignee: Individual
•
Filing: 1964-09-04
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Granted: 1966-04-12
•
Expires: 1984-09-04
Abstract
No abstract record available.
Inventors
- 👤 John A Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN EARTH EXCAVATING DEVICE ADAPTED FOR USE IN CONJUNCTION WITH TRANSPORT MEANS, SAID DEVICE COMPRISING A MANEUVERABLE BOOM MEMBER MOUNTED AT ONE END THEREOF TO TRANSPORT MEANS; A MANEUVERABLE DIPPER-STICK PIVOTLY CONNECTED AT ONE END TO THE OTHER END OF SAID BOOM MEMBER; AN EXTENSION MEMBER MOUNTED ON SAID DIPPER-STICK AND ADAPTED TO SLIDE OVER ONE SIDE OF SAID DIPPER-STICK; A BACKHOE BUCKET PIVOTLY CONNECTED TO THE OTHER END OF SAID DIPPER-STICK; MEANS INTERCOUPLING SAID DIPPER-STICK AND SAID EXTENSION MEMBER AND ADAPTED TO SLIDEABLY ADVANCE OR RETRACT THE SAID MEMBER LONGITUDINALLY ALONG THE AXIS OF SAID DIPPER-STICK GUIDE MEANS PROVIDED ALONG OPPOSITE EXTERIOR SIDES OF SAID DIPPER-STICK AND ADAPTED TO SLIDEABLY RECEIVE MEANS CONNECTING SAID EXTENSION MEMBER AND BUCKET ACTUATING MEANS TO SAID DIPPER-STICK; AND MEANS FOR OPERATING SAID BOOM MEMBER, DIPPER STICK, EXTENSION MEMBER AND BUCKET.
Claim 2
Dependent Claim
137 words
AN EARTH EXCAVATING DEVICE ADAPTED FOR USE IN CONJUNCTION WITH TRANSPORT MEANS, SAID DEVICE COMPRISING A MANEUVERABLE BOOM MEMBER MOUNTED AT ONE END THEREOF TO TRANSPORT MEANS; A MANEUVERABLE DIPPER-STICK PIVOTLY CONNECTED AT ONE END TO THE OTHER END OF SAID BOOM MEMBER; AN EXTENSION MEMBER MOUNTED ON SAID DIPPER-STICK AND ADAPTED TO SLIDE OVER ONE SIDE OF SAID DIPPER-STICK; A BACKHOE BUCKET PIVOTLY CONNECTED TO THE OTHER END OF SAID DIPPER-STICK; MEANS INTERCOUPLING SAID DIPPER-STICK AND SAID EXTENSION MEMBER AND ADAPTED TO SLIDEABLY ADVANCE OR RETRACT THE SAID MEMBER LONGITUDINALLY ALONG THE AXIS OF SAID DIPPER-STICK GUIDE MEANS PROVIDED ALONG OPPOSITE EXTERIOR SIDES OF SAID DIPPER-STICK AND ADAPTED TO SLIDEABLY RECEIVE MEANS CONNECTING SAID EXTENSION MEMBER AND BUCKET ACTUATING MEANS TO SAID DIPPER-STICK; AND MEANS FOR OPERATING SAID BOOM MEMBER, DIPPER STICK, EXTENSION MEMBER AND BUCKET.
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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |