US3326570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infant's walker
Assignee: THAYER Inc
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Filing: 1966-02-21
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Granted: 1967-06-20
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Benjamin K Burnham
- 👤 Raymond J Sarasin
- 👤 Harold F Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:27
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/02; A47D1/06; A47D13/00; A47D13/04; A47D13/043; B; B62; B62B; B62B7/00; B62B7/04; B62B7/12; B62B7/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A CHILD''S VEHICLE COMPRISING A LOWER FRAME, AN UPPER FRAME HAVING A FORWARD END AND A REAR END AND INCLUDING A PAIR OF SPACED MEMBERS EACH OF WHICH HAS A DOWNTURNED REAR END PORTION, TWO PAIRS OF SPACED INTERPIVOTED SCISSOR MEMBERS, THE CORRESPONDING ENDS OF SAID SCISSOR MEMBERS BEING PIVOTALLY ARRANGED WITH RESPECT TO SAID LOWER FRAME AND EXTENDING GENERALLY UPWARDLY THEREFROM, ONE SCISSOR MEMBER OF EACH PAIR PIVOTALLY MOUNTING THE UPPER FRAME ADJACENT THE FORWARD END THEREOF, THE OTHER SCISSOR MEMBER OF EACH PAIR EXTENDING IN A DIRECTION UPWARDLY TOWARD SAID UPPER FRAME AND TERMINATING IN FREE-ENDED UPPER END PORTIONS, A LINK PIVOTALLY CONNECTING EACH DOWNTURNED REAR END PORTION OF EACH OF THE MEMBERS OF THE UPPER FRAME WITH THE CORRESPONDING FREE-ENDED PORTIONS OF THE RESPECTIVE SCISSOR MEMBER, THE FREE ENDS OF SAID OTHER SCISSOR MEMBERS CONTACTING AND SUPPORTING THE DOWNTURNED END PORTIONS OF SAID UPPER FRAME WHEN THE DEVICE IS EXTENDED, SAID LINKS PROVIDING FOR PIVOTAL MOTION OF SIAD DOWNTURNED END PORTIONS UP OVER THE FREE ENDS OF SAID OTHER SCISSOR MEMBERS TO ALLOW THE LATTER TO FOLD, THE LINKS TENDING TO HOLD THE MEMBERS EXTENDED.
Claim 2
Dependent Claim
188 words
A CHILD''S VEHICLE COMPRISING A LOWER FRAME, AN UPPER FRAME HAVING A FORWARD END AND A REAR END AND INCLUDING A PAIR OF SPACED MEMBERS EACH OF WHICH HAS A DOWNTURNED REAR END PORTION, TWO PAIRS OF SPACED INTERPIVOTED SCISSOR MEMBERS, THE CORRESPONDING ENDS OF SAID SCISSOR MEMBERS BEING PIVOTALLY ARRANGED WITH RESPECT TO SAID LOWER FRAME AND EXTENDING GENERALLY UPWARDLY THEREFROM, ONE SCISSOR MEMBER OF EACH PAIR PIVOTALLY MOUNTING THE UPPER FRAME ADJACENT THE FORWARD END THEREOF, THE OTHER SCISSOR MEMBER OF EACH PAIR EXTENDING IN A DIRECTION UPWARDLY TOWARD SAID UPPER FRAME AND TERMINATING IN FREE-ENDED UPPER END PORTIONS, A LINK PIVOTALLY CONNECTING EACH DOWNTURNED REAR END PORTION OF EACH OF THE MEMBERS OF THE UPPER FRAME WITH THE CORRESPONDING FREE-ENDED PORTIONS OF THE RESPECTIVE SCISSOR MEMBER, THE FREE ENDS OF SAID OTHER SCISSOR MEMBERS CONTACTING AND SUPPORTING THE DOWNTURNED END PORTIONS OF SAID UPPER FRAME WHEN THE DEVICE IS EXTENDED, SAID LINKS PROVIDING FOR PIVOTAL MOTION OF SIAD DOWNTURNED END PORTIONS UP OVER THE FREE ENDS OF SAID OTHER SCISSOR MEMBERS TO ALLOW THE LATTER TO FOLD, THE LINKS TENDING TO HOLD THE MEMBERS EXTENDED.
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) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |