Patent US3157871A successfully refreshed from Google Patents.
US3157871A
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Shopping cart provided with radio receiving apparatus
Assignee: R A MACPLUM IND Inc
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Filing: 1960-03-21
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Granted: 1964-11-17
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Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Umanoff Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:02
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/14; B62B3/1408; H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/22; H04B1/24; H05; H05K; H05K11/00; B62B2501/00; B62B2501/06; B62B2501/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
FOR USE IN CONNECTION WITH A WHEELED SHOPPING CART INTENDED TO BE MOVED ABOUT FREELY WITHIN A PRESCRIBED SHOPPING AREA: A LOCAL RADIO TRANSMITTER LOCATED WITHIN SAID AREA FOR BROADCASTING A SIGNAL OF PREDETERMINED FREQUENCY, AND A RADIO RECEIVING APPARATUS CARRIED BY SAID CART AND TUNED TO RECEIVE ONLY THE SIGNAL EMANATING FROM SAID TRANSMITTER, SAID SHOPPING CART HAVING AN ENCLOSURE ADAPTED TO CONTAIN SAID RADIO RECEIVING APPARATUS AND SAID ENCLOSURE INCLUDING MEANS PREVENTING READY ACCESS TO SAID RADIO RECEIVING APPARATUS.
Claim 2
Dependent Claim
81 words
FOR USE IN CONNECTION WITH A WHEELED SHOPPING CART INTENDED TO BE MOVED ABOUT FREELY WITHIN A PRESCRIBED SHOPPING AREA: A LOCAL RADIO TRANSMITTER LOCATED WITHIN SAID AREA FOR BROADCASTING A SIGNAL OF PREDETERMINED FREQUENCY, AND A RADIO RECEIVING APPARATUS CARRIED BY SAID CART AND TUNED TO RECEIVE ONLY THE SIGNAL EMANATING FROM SAID TRANSMITTER, SAID SHOPPING CART HAVING AN ENCLOSURE ADAPTED TO CONTAIN SAID RADIO RECEIVING APPARATUS AND SAID ENCLOSURE INCLUDING MEANS PREVENTING READY ACCESS TO SAID RADIO RECEIVING APPARATUS.
References Cited (Backward Citations)
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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) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |