Patent US5152109A successfully refreshed from Google Patents.
Patent US3743312A successfully refreshed from Google Patents.
US3743312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined wheel barrow and hand truck
Assignee: Lee Raymond Organization Inc
•
Filing: 1971-06-25
•
Granted: 1973-07-03
•
Expires: 1991-06-25
Abstract
Abstract A hand truck can be converted to a wheel barrow by detachably securing a tub thereto and by swinging axles carrying wheels into rest positions adjacent the tub.
Inventors
- 👤 G Gibbons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:08
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/18; B62B1/20; B62B1/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
In comination; A HAND TRUCK; A DETACHABLE WHEEL BARROW TUB SECURED TO SAID TRUCK TO CONVERT THE SAME TO A WHEEL BARROW; SAID TRUCK HAVING TWO OPPOSITELY DISPOSED WHEELS SECURED TO CORRESPONDING AXLES; AND MEANS FOR PIVOTALLY AND SLIDABLY MOUNTING THE TWO AXLES ON THE TRUCK; MEANS FOR DETACHABLY SECURING SAID AXLES IN CROSSED CONFIGURATION FOR WHEELBARROW USAGE; ONE OF SAID AXLES BEING HOLLOW AND RECEIVING THE OTHER AXLE THEREIN WHEN TRUCK USAGE IS EMPLOYED.
Claim 2
Dependent Claim
75 words
In comination; A HAND TRUCK; A DETACHABLE WHEEL BARROW TUB SECURED TO SAID TRUCK TO CONVERT THE SAME TO A WHEEL BARROW; SAID TRUCK HAVING TWO OPPOSITELY DISPOSED WHEELS SECURED TO CORRESPONDING AXLES; AND MEANS FOR PIVOTALLY AND SLIDABLY MOUNTING THE TWO AXLES ON THE TRUCK; MEANS FOR DETACHABLY SECURING SAID AXLES IN CROSSED CONFIGURATION FOR WHEELBARROW USAGE; ONE OF SAID AXLES BEING HOLLOW AND RECEIVING THE OTHER AXLE THEREIN WHEN TRUCK USAGE IS EMPLOYED.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |