Patent US3091870A successfully refreshed from Google Patents.
US3091870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic-cohesion models of scientific and mathematical structures
Assignee: Individual
•
Filing: 1959-08-10
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Granted: 1963-06-04
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Expires: 1979-08-10
Abstract
No abstract record available.
Inventors
- 👤 Harold L Sangster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:35
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/26; Y; Y10; Y10S; Y10S428/00; Y10S428/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A MODEL ELEMENT COMPRISING A BODY OF SOLID MATERIAL DISTRIBUTED ABOUT AT LEAST ONE AXIS AND HAVING AN EXTERNAL COMPLETELY CLOSED SURFACE DEFINING ABOUT SAID AXIS A SIMPLE THREE-DIMENSIONAL GEOMETRICAL SOLID CONFIGURATION; PERMANENT MAGNETIC MEANS CARRIED BY SAID BODY FOR ESTABLISHING PREDETERMINED PERMANENT MAGNETIC POLES DISTRIBUTED CONTINUOUSLY OVER THE ENTIRE RESPECTIVE EXTERNAL SURFACE PORTIONS OF SAID BODY LYING ON OPPOSITE SIDES OF PERIPHERAL MAGNETICALLY NEUTRAL ZONE WHICH IS AT THE INTERSECTION OF THE SAID EXTERNAL SURFACE WITH A MEDIAN PLANE OF SAID BODY THAT IS PERPENDICULAR TO SAID AXIS.
Claim 2
Dependent Claim
89 words
A MODEL ELEMENT COMPRISING A BODY OF SOLID MATERIAL DISTRIBUTED ABOUT AT LEAST ONE AXIS AND HAVING AN EXTERNAL COMPLETELY CLOSED SURFACE DEFINING ABOUT SAID AXIS A SIMPLE THREE-DIMENSIONAL GEOMETRICAL SOLID CONFIGURATION; PERMANENT MAGNETIC MEANS CARRIED BY SAID BODY FOR ESTABLISHING PREDETERMINED PERMANENT MAGNETIC POLES DISTRIBUTED CONTINUOUSLY OVER THE ENTIRE RESPECTIVE EXTERNAL SURFACE PORTIONS OF SAID BODY LYING ON OPPOSITE SIDES OF PERIPHERAL MAGNETICALLY NEUTRAL ZONE WHICH IS AT THE INTERSECTION OF THE SAID EXTERNAL SURFACE WITH A MEDIAN PLANE OF SAID BODY THAT IS PERPENDICULAR TO SAID AXIS.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |