US3104889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
branch
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:51
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; E; E06; E06C; E06C1/00; E06C1/02; E06C1/38; E06C1/397
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A HAND TRUCK AND STEPLADDER COMPRISING, IN COMBINATION, A GENERALLY U-SHAPED FRAME, A PAIR OF LEGS MOUNTED ON THE END PORTIONS OF SAID FRAME, A TRANSVERSE AXLE MOUNTED ON SAID LEGS, SUPPORTING WHEELS ON THE END PORTIONS OF THE AXLE, A NOSE PLATE, PAIRS OF SPACED LUGS ON THE PLATE STRADDLING SAID END PORTIONS OF THE FRAME AND PIVOTALLY CONNECTED THERETO FOR MOUNTING SAID PLATE THEREON FOR SWINGING MOVEMENT TO AN INOPERATIVE POSITION PARALLELING THE FRAME OR TO AN INOPERATIVE POSITION AT AN ANGLE RELATIVELY TO THE FRAME, AND MEMBERS BRIDGING THE PAIRS OF LUGS AND ENGAGEABLE WITH THE LEGS FOR POSITIVELY PREVENTING SWINGING MOVEMENT OF SAID NOSE PLATE BEYOND SAID OPERATIVE POSITION, SAID PLATE BEING ENGAGEABLE WITH A SUPPORTING SURFACE FOR MOUNTING THE FRAME THEREON FOR VERTICAL SWINGING MOVEMENT TO AN INCLINED POSITION ACROSS THE PLATE TO FUNCTION AS A STEPLADDER, AND MEANS FOR SUPPORTING THE FRAME IN SAID INCLINED POSITION.
Claim 2
Dependent Claim
152 words
A HAND TRUCK AND STEPLADDER COMPRISING, IN COMBINATION, A GENERALLY U-SHAPED FRAME, A PAIR OF LEGS MOUNTED ON THE END PORTIONS OF SAID FRAME, A TRANSVERSE AXLE MOUNTED ON SAID LEGS, SUPPORTING WHEELS ON THE END PORTIONS OF THE AXLE, A NOSE PLATE, PAIRS OF SPACED LUGS ON THE PLATE STRADDLING SAID END PORTIONS OF THE FRAME AND PIVOTALLY CONNECTED THERETO FOR MOUNTING SAID PLATE THEREON FOR SWINGING MOVEMENT TO AN INOPERATIVE POSITION PARALLELING THE FRAME OR TO AN INOPERATIVE POSITION AT AN ANGLE RELATIVELY TO THE FRAME, AND MEMBERS BRIDGING THE PAIRS OF LUGS AND ENGAGEABLE WITH THE LEGS FOR POSITIVELY PREVENTING SWINGING MOVEMENT OF SAID NOSE PLATE BEYOND SAID OPERATIVE POSITION, SAID PLATE BEING ENGAGEABLE WITH A SUPPORTING SURFACE FOR MOUNTING THE FRAME THEREON FOR VERTICAL SWINGING MOVEMENT TO AN INCLINED POSITION ACROSS THE PLATE TO FUNCTION AS A STEPLADDER, AND MEANS FOR SUPPORTING THE FRAME IN SAID INCLINED POSITION.
References Cited (Backward Citations)
US310836A
Cited
US466899A
Cited
US1116779A
Cited
US2329439A
Cited
GB574071A
Cited
GB753922A
Cited
US3043603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |