Patent US2600401A successfully refreshed from Google Patents.
Patent US3208609A successfully refreshed from Google Patents.
US3208609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile power shovel
Assignee: Individual
•
Filing: 1963-10-28
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Granted: 1965-09-28
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Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Robert G Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:07
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/352; Y; Y10; Y10S; Y10S37/00; Y10S37/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
IN A MOBILE SHOVEL LOADER OF THE CHARACTER DISCLOSED, A FRAME, A SHOVEL PIVOTALLY MOUNTED THEREON AND PROJECTING FROM THE FRONT END OF SAID FRAME, POWER MEANS FOR OPERATING SAID LOADER, SAID POWER MEANS BEING MOUNTED ON SAID FRAME ADJACENT THE REAR END THEREOF, RIGHT AND LEFT-HAND WHEELS AND A CASTER WHEEL FOR TRANSPORTING SAID FRAME, INDIVIDUAL, REVERSIBLE HYDRAULIC MOTORS FOR ROTATING SAID RIGHT AND LEFT-HAND WHEELS, SAID RIGHT AND LEFT-HAND WHEELS BEING LOCATED ADJACENT THE CENTER OF GRAVITY OF SAID FRAME AND SHOVEL WHEN THE SHOVEL IS LOADED, SAID CASTER WHEEL BEING LOCATED ADJACENT THE REAR END OF SAID FRAME AND TO ONE SIDE THEREOF, A DRIVER''S SEAT ADJACENT SAID CASTER WHEEL, MEANS FOR PIVOTING SAID SHOVEL ON SAID FRAME TO THEREBY LIFT THE SHOVEL TO AN ELEVATED POSITION, MEANS FOR EJECTING THE CONTENTS OF SAID SHOVEL THEREFROM, SAID LAST TWO MEANS BEING HYDRAULICALLY OPERATED, SAID POWER MEANS INCLUDING HYDRAULIC PUMP MEANS FOR SUPPLYING FLUID UNDER PRESSURE TO SAID MOTORS, SHOVEL PIVOTING MEANS AND EJECTING MEANS, AND INDIVIDUAL CONTROLS ADJACENT SAID DRIVER''S SEAT FOR SAID HYDRAULIC MOTORS.
Claim 2
Dependent Claim
178 words
IN A MOBILE SHOVEL LOADER OF THE CHARACTER DISCLOSED, A FRAME, A SHOVEL PIVOTALLY MOUNTED THEREON AND PROJECTING FROM THE FRONT END OF SAID FRAME, POWER MEANS FOR OPERATING SAID LOADER, SAID POWER MEANS BEING MOUNTED ON SAID FRAME ADJACENT THE REAR END THEREOF, RIGHT AND LEFT-HAND WHEELS AND A CASTER WHEEL FOR TRANSPORTING SAID FRAME, INDIVIDUAL, REVERSIBLE HYDRAULIC MOTORS FOR ROTATING SAID RIGHT AND LEFT-HAND WHEELS, SAID RIGHT AND LEFT-HAND WHEELS BEING LOCATED ADJACENT THE CENTER OF GRAVITY OF SAID FRAME AND SHOVEL WHEN THE SHOVEL IS LOADED, SAID CASTER WHEEL BEING LOCATED ADJACENT THE REAR END OF SAID FRAME AND TO ONE SIDE THEREOF, A DRIVER''S SEAT ADJACENT SAID CASTER WHEEL, MEANS FOR PIVOTING SAID SHOVEL ON SAID FRAME TO THEREBY LIFT THE SHOVEL TO AN ELEVATED POSITION, MEANS FOR EJECTING THE CONTENTS OF SAID SHOVEL THEREFROM, SAID LAST TWO MEANS BEING HYDRAULICALLY OPERATED, SAID POWER MEANS INCLUDING HYDRAULIC PUMP MEANS FOR SUPPLYING FLUID UNDER PRESSURE TO SAID MOTORS, SHOVEL PIVOTING MEANS AND EJECTING MEANS, AND INDIVIDUAL CONTROLS ADJACENT SAID DRIVER''S SEAT FOR SAID HYDRAULIC MOTORS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |