US3156986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational apparatus for simulating atomic and molecular models
Assignee: ATOM CRAFT Inc
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Filing: 1963-06-24
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Granted: 1964-11-17
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Strachan Dora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:35
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
EDUCATIONAL APPARATUS FOR ILLUSTRATING THE ATOMIC AND MOLECULAR STRUCTURE OF MATTER COMPRISING: A FIRST MEMBER COMPRISING A SPHERE HAVING A PAIR OF DIAMETRICALLY OPPOSED OUTWARDLY EXTENDING RADIAL PROJECTIONS TO REPRESENT A NUCLEUS; A SECOND MEMBER REPRESENTING A K SHELL, SAID SECOND MEMBER HAVING A CENTRAL HOLE THEREIN ADAPTED TO RECEIVE SAID FIRST MEMBER, SAID SECOND MEMBER COMPRISING A PAIR OF MATINGLY ENGAGEABLE COMPLEMENTARY ANNULAR MEMBERS, EACH HAVING A PAIR OF DIAMETRICALLY OPPOSED RECESSES OPENING INTO THE CENTRAL HOLE THEREOF TO RECEIVE SAID PROJECTIONS OF SAID FIRST MEMBER AND A CHANNEL ADJACENT THE PERIPHERY THEREOF WHEREBY SAID COMPLEMENTARY MEMBERS DEFINE A PERIPHERAL CHANNEL OPENING TO THE EXTERIOR THROUGH A REDUCED THROAT PORTION, AND
Claim 2
Dependent Claim
112 words
EDUCATIONAL APPARATUS FOR ILLUSTRATING THE ATOMIC AND MOLECULAR STRUCTURE OF MATTER COMPRISING: A FIRST MEMBER COMPRISING A SPHERE HAVING A PAIR OF DIAMETRICALLY OPPOSED OUTWARDLY EXTENDING RADIAL PROJECTIONS TO REPRESENT A NUCLEUS; A SECOND MEMBER REPRESENTING A K SHELL, SAID SECOND MEMBER HAVING A CENTRAL HOLE THEREIN ADAPTED TO RECEIVE SAID FIRST MEMBER, SAID SECOND MEMBER COMPRISING A PAIR OF MATINGLY ENGAGEABLE COMPLEMENTARY ANNULAR MEMBERS, EACH HAVING A PAIR OF DIAMETRICALLY OPPOSED RECESSES OPENING INTO THE CENTRAL HOLE THEREOF TO RECEIVE SAID PROJECTIONS OF SAID FIRST MEMBER AND A CHANNEL ADJACENT THE PERIPHERY THEREOF WHEREBY SAID COMPLEMENTARY MEMBERS DEFINE A PERIPHERAL CHANNEL OPENING TO THE EXTERIOR THROUGH A REDUCED THROAT PORTION, AND
References Cited (Backward Citations)
US2410874A
Cited
US2477179A
Cited
CH320788A
Cited
US2920400A
Cited
FR1214106A
Cited
FR1168727A
Cited
US3080662A
Cited
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 |