Patent US3249168A successfully refreshed from Google Patents.
US3249168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating machine
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1963-12-23
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Granted: 1966-05-03
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Klein Karl
- 👤 Platte Franz-Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:37
CPC Classifications
B; B62; B62D; B62D57/00; E; E02; E02F; E02F9/00; E02F9/02; E02F9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
243 words
AN EARTH WORKING MACHINE, ESPECIALLY EXCAVATOR, WHICH COMPRISES: A FRAME STRUCTURE, FIRST SUPPORTING MEANS ON OPPOSITE SIDES OF THE LONGITUDINAL AXIS OF SAID MACHINE FOR SUPPORTING SAID FRAME STRUCTURE, FIRST CONNECTING MEANS CONNECTING SAID FRAME STRUCTURE TO SAID FIRST SUPPORTING MEANS AND OPERABLE SELECTIVELY TO LOWER SAID FIRST SUPPORTING MEANS TO THE GROUND ON WHICH SAID MACHINE IS STANDING AND TO LIFT SAID FIRST SUPPORTING MEANS OFF SAID GROUND, SAID FIRST CONNECTING MEANS INCLUDING MEANS FOR PERMITTING MOVEMENT OF SAID FIRST SUPPORTING MEANS AND SAID FRAME STRUCTURE RELATIVE TO EACH OTHER IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID MACHINE, MEANS OPERATIVELY CONNECTED TO SAID FIRST SUPPORTING MEANS AND SAID FRAME STRUCTURE FOR EFFECTING RELATIVE MOVEMENT THEREOF IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID MACHINE, SECOND SUPPORTING MEANS ARRANGED BETWEEN SAID FIRST SUPPORTING MEANS AND BELOW THE CENTER OF GRAVITY OF SAID FRAME STRUCTURE, SAID SECOND SUPPORTING MEANS INCLUDING CIRCULAR TRACK MEANS AND BEING MOVABLE UPWARDLY AND DOWNWARDLY INDEPENDENTLY OF SAID FIRST SUPPORTING MEANS, CARRIAGE MEANS MOVABLE ON SAID TRACK MEANS AND OPERATIVELY CONNECTED TO SAID TRACK MEANS FOR UPWARD AND DOWNWARD MOVEMENT WITH SAID SECOND SUPPORTING MEANS, AND SECOND CONNECTING MEANS CONNECTED ON ONE HAND TO SAID FRAME STRUCTURE AND ON THE OTHER HAND TO SAID CARRIAGE MEANS FOR SELECTIVELY AND INDEPENDENTLY OF SAID FIRST CONNECTING MEANS LIFTING SAID SECOND SUPPORTING MEANS OFF THE GROUND ON WHICH SAID MACHINE IS STANDING OR TO LOWER SAID SECOND SUPPORTING MEANS THEREONTO.
Claim 2
Dependent Claim
243 words
AN EARTH WORKING MACHINE, ESPECIALLY EXCAVATOR, WHICH COMPRISES: A FRAME STRUCTURE, FIRST SUPPORTING MEANS ON OPPOSITE SIDES OF THE LONGITUDINAL AXIS OF SAID MACHINE FOR SUPPORTING SAID FRAME STRUCTURE, FIRST CONNECTING MEANS CONNECTING SAID FRAME STRUCTURE TO SAID FIRST SUPPORTING MEANS AND OPERABLE SELECTIVELY TO LOWER SAID FIRST SUPPORTING MEANS TO THE GROUND ON WHICH SAID MACHINE IS STANDING AND TO LIFT SAID FIRST SUPPORTING MEANS OFF SAID GROUND, SAID FIRST CONNECTING MEANS INCLUDING MEANS FOR PERMITTING MOVEMENT OF SAID FIRST SUPPORTING MEANS AND SAID FRAME STRUCTURE RELATIVE TO EACH OTHER IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID MACHINE, MEANS OPERATIVELY CONNECTED TO SAID FIRST SUPPORTING MEANS AND SAID FRAME STRUCTURE FOR EFFECTING RELATIVE MOVEMENT THEREOF IN THE DIRECTION OF THE LONGITUDINAL AXIS OF SAID MACHINE, SECOND SUPPORTING MEANS ARRANGED BETWEEN SAID FIRST SUPPORTING MEANS AND BELOW THE CENTER OF GRAVITY OF SAID FRAME STRUCTURE, SAID SECOND SUPPORTING MEANS INCLUDING CIRCULAR TRACK MEANS AND BEING MOVABLE UPWARDLY AND DOWNWARDLY INDEPENDENTLY OF SAID FIRST SUPPORTING MEANS, CARRIAGE MEANS MOVABLE ON SAID TRACK MEANS AND OPERATIVELY CONNECTED TO SAID TRACK MEANS FOR UPWARD AND DOWNWARD MOVEMENT WITH SAID SECOND SUPPORTING MEANS, AND SECOND CONNECTING MEANS CONNECTED ON ONE HAND TO SAID FRAME STRUCTURE AND ON THE OTHER HAND TO SAID CARRIAGE MEANS FOR SELECTIVELY AND INDEPENDENTLY OF SAID FIRST CONNECTING MEANS LIFTING SAID SECOND SUPPORTING MEANS OFF THE GROUND ON WHICH SAID MACHINE IS STANDING OR TO LOWER SAID SECOND SUPPORTING MEANS THEREONTO.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |