US3174722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load lifting device
Assignee: Individual
•
Filing: 1962-09-17
•
Granted: 1965-03-23
•
Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 Erhard J Alm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:06
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/06; B66F7/08; B66F7/0625; B66F7/065; B66F7/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN A LOAD LIFTING APPARATUS INCLUDING A LOAD-ENGAGING FRAME AND A GROUND-ENGAGING FRAME AND TWO PAIRS OF HINGED LEVERS CONNECTED BETWEEN SAID FRAMES ONE PAIR OF EACH SIDE THEREOF, A FIRST ONE OF EACH OF SAID PAIRS OF LEVERS BEING CORRESPONDING AND A SECOND ONE OF EACH OF SAID PAIRS OF LEVERS BEING CORRESPONDING, THE IMPROVEMENT COMPRISING: A FIRST PLATFORM HINGEDLY CONNECTED BETWEEN SAID CORRESPONDING FIRST LEVERS AND MOVABLY CONNECTED TO SAID CORRESPONDING SECOND LEVERS; A SECOND PLATFORM HINGEDLY CONNECTED TO SAID SECOND CORRESPONDING LEVERS IN A SPACED APART RELATIONSHIP FROM SAID FIRST PLATFORM CONNECTIONS THERETO AND MOVABLY CONNECTED TO SAID FIRST CORRESPONDING LEVERS IN A SPACED APART RELATIONSHIP FROM SAID FIRST PLATFFORM CONNECTION THERETO, AND FLUID INFLATABLE MEANS CONSTRAINED TO EXPAND SUBSTANTIALLY VERTICALLY SECURED BETWEEN SAID FIRST AND SECOND PLATFORMS,
Claim 2
Dependent Claim
131 words
IN A LOAD LIFTING APPARATUS INCLUDING A LOAD-ENGAGING FRAME AND A GROUND-ENGAGING FRAME AND TWO PAIRS OF HINGED LEVERS CONNECTED BETWEEN SAID FRAMES ONE PAIR OF EACH SIDE THEREOF, A FIRST ONE OF EACH OF SAID PAIRS OF LEVERS BEING CORRESPONDING AND A SECOND ONE OF EACH OF SAID PAIRS OF LEVERS BEING CORRESPONDING, THE IMPROVEMENT COMPRISING: A FIRST PLATFORM HINGEDLY CONNECTED BETWEEN SAID CORRESPONDING FIRST LEVERS AND MOVABLY CONNECTED TO SAID CORRESPONDING SECOND LEVERS; A SECOND PLATFORM HINGEDLY CONNECTED TO SAID SECOND CORRESPONDING LEVERS IN A SPACED APART RELATIONSHIP FROM SAID FIRST PLATFORM CONNECTIONS THERETO AND MOVABLY CONNECTED TO SAID FIRST CORRESPONDING LEVERS IN A SPACED APART RELATIONSHIP FROM SAID FIRST PLATFFORM CONNECTION THERETO, AND FLUID INFLATABLE MEANS CONSTRAINED TO EXPAND SUBSTANTIALLY VERTICALLY SECURED BETWEEN SAID FIRST AND SECOND PLATFORMS,
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2610824A
Cited
US2609177A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |