US3252248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line follower device, especially for toys
Assignee: Individual
•
Filing: 1963-03-07
•
Granted: 1966-05-24
•
Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Albert M Zalkind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:27
CPC Classifications
A; A63; A63H; A63H18/00; A63H18/10; Y; Y10; Y10S; Y10S439/00; Y10S439/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN ELECTRICAL TOY COMPRISING AN ELECTRICAL DRIVING MEANS AND A MEMBER HAVING A CONDUCTIVE SURFACE, MEANS COMPRISING A CONTACT FOR CONDUCTING CURRENT TO SAID DRIVING MEANS AND BEING ENGAGEABLE WITH SAID SURFACE, SUCH CONTACT BEING A REVERSED BRUSH TUFT HAVING WIRE LOOPS ENGAGING SAID SURFACE AND SAID LOOPS BEING DISPOSED TO BE INDIVIDUALLY FLEXIBLE IN THE DIRECTION OF MOVEMENT OF SAID TOY.
Claim 2
Dependent Claim
62 words
AN ELECTRICAL TOY COMPRISING AN ELECTRICAL DRIVING MEANS AND A MEMBER HAVING A CONDUCTIVE SURFACE, MEANS COMPRISING A CONTACT FOR CONDUCTING CURRENT TO SAID DRIVING MEANS AND BEING ENGAGEABLE WITH SAID SURFACE, SUCH CONTACT BEING A REVERSED BRUSH TUFT HAVING WIRE LOOPS ENGAGING SAID SURFACE AND SAID LOOPS BEING DISPOSED TO BE INDIVIDUALLY FLEXIBLE IN THE DIRECTION OF MOVEMENT OF SAID TOY.
References Cited (Backward Citations)
US3124902A
Cited
US2054644A
Cited
US2894078A
Cited
US3083503A
Cited
US2938185A
Cited
US3014100A
Cited
US3159109A
Cited
US3086319A
Cited
US3157770A
Cited
US3130803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |