US3253365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled top
Assignee: Motorola Solutions Inc
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Filing: 1963-07-12
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Granted: 1966-05-31
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Richard D Calderon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:49
CPC Classifications
A; A63; A63H; A63H1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A SELF-PROPELLED TOP INCLUDING IN COMBINATION, AN ENCLOSURE SYMMETRICAL ABOUT AN AXIS AND HAVING AN OPENING AT THE BOTTOM THEREOF AT THE AXIS, A DIRECT CURRENT MOTOR HAVING A SPINDLE AXIALLY DISPLACEABLE BETWEEN FIRST AND SECOND POSITIONS, SAID MOTOR BEING MOUNTED IN SAID ENCLOSURE AND BEING DRIVINGLY CONNECTED THERETO WITH SAID SPINDLE COAXIAL WITH THE AXIS OF SYMMETRY OF SAID ENCLOSURE, A FRICTION SUPPORT FOR SAID TOP SECURED TO SAID SPINDLE OUTWARDLY OF SAID OPENING IN SAID ENCLOSURE, MEANS FOR MOUNTING AN ELECTRICAL ENERGY SOURCE WITHIN SAID ENCLOSURE, AND
Claim 2
Dependent Claim
89 words
A SELF-PROPELLED TOP INCLUDING IN COMBINATION, AN ENCLOSURE SYMMETRICAL ABOUT AN AXIS AND HAVING AN OPENING AT THE BOTTOM THEREOF AT THE AXIS, A DIRECT CURRENT MOTOR HAVING A SPINDLE AXIALLY DISPLACEABLE BETWEEN FIRST AND SECOND POSITIONS, SAID MOTOR BEING MOUNTED IN SAID ENCLOSURE AND BEING DRIVINGLY CONNECTED THERETO WITH SAID SPINDLE COAXIAL WITH THE AXIS OF SYMMETRY OF SAID ENCLOSURE, A FRICTION SUPPORT FOR SAID TOP SECURED TO SAID SPINDLE OUTWARDLY OF SAID OPENING IN SAID ENCLOSURE, MEANS FOR MOUNTING AN ELECTRICAL ENERGY SOURCE WITHIN SAID ENCLOSURE, AND
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |