US3135527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled market carts
Assignee: Individual
•
Filing: 1961-07-28
•
Granted: 1964-06-02
•
Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 Philip B Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:14
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; B62B2202/00; B62B2202/26; B62B2501/00; B62B2501/06; B62B2501/062; Y; Y10; Y10S; Y10S280/00; Y10S280/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A WHEELED CARRIER COMPRISING AN ENVELOPE SUBSTANTIALLY RECTANGULAR WHEN EXTENDED IN OPEN POSITION AND HAVING OPEN TOP AND BEING CAPABLE OF HAVING FOLDED BY THE BRINGING OF TWO OF THE OPPOSITE WALLS THEREOF TOWARD EACH OTHER, SAID ENVELOPE INCLUDING AN UPSTANDING SUBSTANTIALLY RIGID BACK PORTION, A FRONT PORTION AND SIDE PORTIONS, A LATERALLY EXTENDING SUBSTANTIALLY RIGID BOTTOM PORTION EXTENDING BETWEEN THE LOWER EDGE OF SAID BACK PORTION AND THE LOWER EDGE OF SAID FRONT PORTION, MEANS FOR HINGING SAID BOTTOM PORTION UPWARDLY TO PROVIDE FOR THE MOVING OF SAID BACK PORTION AND OPPOSED FRONT PORTION TOWARDS EACH OTHER FOR FOLDING, AND MEANS SUBSTANTIALLY AT THE JUNCTURE OF SAID BACK AND BOTTOM PORTIONS FOR MOUNTING A PAIR OF WHEELS AT OPPOSITE SIDES OF SAID ENVELOPE, SAID MOUNTING MEANS BEING FORMED FROM AN EXTENSION OF SAID BACK PORTION AND COMPRISING A RIGID INVOLUTE ROLL OF CORRUGATED BOARD WOUND TRANSVERSELY OF THE CORRUGATIONS THEREOF.
Claim 2
Dependent Claim
151 words
A WHEELED CARRIER COMPRISING AN ENVELOPE SUBSTANTIALLY RECTANGULAR WHEN EXTENDED IN OPEN POSITION AND HAVING OPEN TOP AND BEING CAPABLE OF HAVING FOLDED BY THE BRINGING OF TWO OF THE OPPOSITE WALLS THEREOF TOWARD EACH OTHER, SAID ENVELOPE INCLUDING AN UPSTANDING SUBSTANTIALLY RIGID BACK PORTION, A FRONT PORTION AND SIDE PORTIONS, A LATERALLY EXTENDING SUBSTANTIALLY RIGID BOTTOM PORTION EXTENDING BETWEEN THE LOWER EDGE OF SAID BACK PORTION AND THE LOWER EDGE OF SAID FRONT PORTION, MEANS FOR HINGING SAID BOTTOM PORTION UPWARDLY TO PROVIDE FOR THE MOVING OF SAID BACK PORTION AND OPPOSED FRONT PORTION TOWARDS EACH OTHER FOR FOLDING, AND MEANS SUBSTANTIALLY AT THE JUNCTURE OF SAID BACK AND BOTTOM PORTIONS FOR MOUNTING A PAIR OF WHEELS AT OPPOSITE SIDES OF SAID ENVELOPE, SAID MOUNTING MEANS BEING FORMED FROM AN EXTENSION OF SAID BACK PORTION AND COMPRISING A RIGID INVOLUTE ROLL OF CORRUGATED BOARD WOUND TRANSVERSELY OF THE CORRUGATIONS THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |