US3203669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Climbing jack
Assignee: BYGGFORBATTRING AB
•
Filing: 1962-05-14
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Granted: 1965-08-31
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Johansson Rolf Gustaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:09
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/04; E02B17/08; E02B17/0836; E02B17/0854; E04; E04G; E04G11/00; E04G11/06; E04G11/20; E04G11/22; E04G11/24; E04G21/00; E04G21/14; E04G21/16; E04G21/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
IN AN ASSEMBLAGE FOR RAISING AND LOWERING A LOAD, JACK MEANS INCLUDIG AT LEAST TWO GRIPPING HEADS ARRANGED IN SPACED SUBSTANTIALLY PARALLEL RELATIONAHIP, SPRINGS INTERCONNECTING SAID GRIPPING HEADS AND NORMALLY URGING SAID HEADS TOWARD EACH OTHER, CYLINDERS AND PISTONS LOCATED BETWEEN SAID HEADS, THE CYLINDERS BEING CONNECTED TO ONE HEAD AND THE PISTONS TO THE OTHER HEAD, EACH GRIPPING HEAD HAVING AN OPEN ENDED SLOT EXTENDING HEIGHTWISE THEREOF WITH SAID SLOTS BEING IN ALIGNMENT, ROD MEANS ADAPTED TO BE POSITIONED IN SAID SLOTS, EACH SLOT HAVING UPWARDLY AND OUTWARDLY INCLINED WALLS, A PAIR OF GRIPPING CLAMPS FOR EACH HEAD ARRANGED IN THE SLOTS, EACH CLAMP HAVING A SURFACE COMPLEMENTARY TO SAID INCLINED WALL AND A SURFACE FOR ENGAGEMENT WITH THE ROD MEANS SO THAT DOWNWARD MOVEMENT OF SAID CLAMPS EFFECTS ENGAGEMENT WITH THE ROD MEANS AND UPWARD MOVEMENT EFFECTS DISENGAGEMENT WITH THE ROD MEANS, THE LOAD BEING ADAPTED TO BE SUPPORTED ON ONE OF SAID MEANS, AND MEANS OPER-
Claim 2
Dependent Claim
159 words
IN AN ASSEMBLAGE FOR RAISING AND LOWERING A LOAD, JACK MEANS INCLUDIG AT LEAST TWO GRIPPING HEADS ARRANGED IN SPACED SUBSTANTIALLY PARALLEL RELATIONAHIP, SPRINGS INTERCONNECTING SAID GRIPPING HEADS AND NORMALLY URGING SAID HEADS TOWARD EACH OTHER, CYLINDERS AND PISTONS LOCATED BETWEEN SAID HEADS, THE CYLINDERS BEING CONNECTED TO ONE HEAD AND THE PISTONS TO THE OTHER HEAD, EACH GRIPPING HEAD HAVING AN OPEN ENDED SLOT EXTENDING HEIGHTWISE THEREOF WITH SAID SLOTS BEING IN ALIGNMENT, ROD MEANS ADAPTED TO BE POSITIONED IN SAID SLOTS, EACH SLOT HAVING UPWARDLY AND OUTWARDLY INCLINED WALLS, A PAIR OF GRIPPING CLAMPS FOR EACH HEAD ARRANGED IN THE SLOTS, EACH CLAMP HAVING A SURFACE COMPLEMENTARY TO SAID INCLINED WALL AND A SURFACE FOR ENGAGEMENT WITH THE ROD MEANS SO THAT DOWNWARD MOVEMENT OF SAID CLAMPS EFFECTS ENGAGEMENT WITH THE ROD MEANS AND UPWARD MOVEMENT EFFECTS DISENGAGEMENT WITH THE ROD MEANS, THE LOAD BEING ADAPTED TO BE SUPPORTED ON ONE OF SAID MEANS, AND MEANS OPER-
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |