US3074734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible serving cart
Assignee: J R Clark Co
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Filing: 1962-01-17
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Granted: 1963-01-22
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Expires: 1982-01-17
Abstract
No abstract record available.
Inventors
- 👤 Donald J Munson
- 👤 Leonard G Ridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:04
CPC Classifications
A; A47; A47B; A47B31/00; A47B31/04; B; B62; B62B; B62B2205/00; B62B2205/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A COLLAPSIBLE CART HAVING UPWARDLY EXTENDING FRONT AND REAR SUPPORT FRAMES PIVOTALLY INTERCONNECTED AT THEIR UPPER ENDS AND DIVERGING DOWNWARDLY FROM THEIR PIVOTAL CONNECTION AND CARRYING WHEELS AT THEIR LOWER ENDS, A LOWER TRAY PIVOTED AT A MEDIAL POINT ON THE REAR FRAME AND EXTENDING FORWARDLY THROUGH THE FRONT FRAME, A REST ON THE FRONT FRAME FOR SUPPORTING THE LOWER TRAY IN HORIZONTAL POSITION, AN UPPER TRAY PIVOTED TO THE REAR FRAME AND EXTENDING FORWARDLY OVER THE LOWER TRAY, AN UPRIGHT SUPPORT ROD EXTENDING BETWEEN THE TRAYS AND HAVING ITS UPPER AND LOWER ENDS RESPECTIVELY PIVOTED TO THE TRAYS, SAID SUPPORT ROD BEING DISPOSED FORWARD OF THE REAR FRAME, A FORE AND AFT EXTENDING CONTROL LINK HAVING ITS FRONT AND REAR ENDS RESPECTIVELY PIVOTED TO THE FRONT FRAME AND LOWER TRAY, AND ALL OF SAID PIVOTS HAVING PARALLEL AXES TRANSVERSE TO THE FORE AND AFT DIRECTION.
Claim 2
Dependent Claim
146 words
A COLLAPSIBLE CART HAVING UPWARDLY EXTENDING FRONT AND REAR SUPPORT FRAMES PIVOTALLY INTERCONNECTED AT THEIR UPPER ENDS AND DIVERGING DOWNWARDLY FROM THEIR PIVOTAL CONNECTION AND CARRYING WHEELS AT THEIR LOWER ENDS, A LOWER TRAY PIVOTED AT A MEDIAL POINT ON THE REAR FRAME AND EXTENDING FORWARDLY THROUGH THE FRONT FRAME, A REST ON THE FRONT FRAME FOR SUPPORTING THE LOWER TRAY IN HORIZONTAL POSITION, AN UPPER TRAY PIVOTED TO THE REAR FRAME AND EXTENDING FORWARDLY OVER THE LOWER TRAY, AN UPRIGHT SUPPORT ROD EXTENDING BETWEEN THE TRAYS AND HAVING ITS UPPER AND LOWER ENDS RESPECTIVELY PIVOTED TO THE TRAYS, SAID SUPPORT ROD BEING DISPOSED FORWARD OF THE REAR FRAME, A FORE AND AFT EXTENDING CONTROL LINK HAVING ITS FRONT AND REAR ENDS RESPECTIVELY PIVOTED TO THE FRONT FRAME AND LOWER TRAY, AND ALL OF SAID PIVOTS HAVING PARALLEL AXES TRANSVERSE TO THE FORE AND AFT DIRECTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |