US3257098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing gear for semi-trailers
Assignee: Individual
•
Filing: 1963-11-12
•
Granted: 1966-06-21
•
Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Roy P Hotchkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:23
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/58; B60D1/66; B60S; B60S9/00; B60S9/14; B60S9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A LANDING GEAR FOR THE FORWARD END OF A SEMI-TRAILER COMPRISING (1) TWO LEGS EACH HAVING A FIXED UPPER PORTION AND A TELESCOPING LOWER PORTION, (2) A TORQUE-PRODUCING FLUID-ACTUATED MOTOR FOR EACH OF SAID LEGS, (3) A SCREW IN EACH OF SAID LEGS HAVING TOWARD THE UPPER END OF ITS LENGTH A PERIPHERAL ENLARGEMENT, SAID SCREW CONNECTED AT ITS UPPER END OF SAID MOTOR, (4) AN OMNI-DIRECTIONAL BEARING FOR SAID PERIPHERAL ENLARGEMENT, AND (5) AN OMNI-DIRECTIONAL FORCE-TRANSMITTING COUPLING BETWEEN SAID SCREEN AND SAID TELESCOPING LOWER PORTION.
Claim 2
Dependent Claim
86 words
A LANDING GEAR FOR THE FORWARD END OF A SEMI-TRAILER COMPRISING (1) TWO LEGS EACH HAVING A FIXED UPPER PORTION AND A TELESCOPING LOWER PORTION, (2) A TORQUE-PRODUCING FLUID-ACTUATED MOTOR FOR EACH OF SAID LEGS, (3) A SCREW IN EACH OF SAID LEGS HAVING TOWARD THE UPPER END OF ITS LENGTH A PERIPHERAL ENLARGEMENT, SAID SCREW CONNECTED AT ITS UPPER END OF SAID MOTOR, (4) AN OMNI-DIRECTIONAL BEARING FOR SAID PERIPHERAL ENLARGEMENT, AND (5) AN OMNI-DIRECTIONAL FORCE-TRANSMITTING COUPLING BETWEEN SAID SCREEN AND SAID TELESCOPING LOWER PORTION.
References Cited (Backward Citations)
US2381529A
Cited
FR931380A
Cited
US2663542A
Cited
US2875980A
Cited
US2945691A
Cited
US2959395A
Cited
US3002400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |