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US3626604A Expired / Lapsed US ⏱️ 0.0 years remaining

Three-dimensional chemical models

Assignee: Individual
•
Filing: 1969-06-23
•
Granted: 1971-12-14
•
Expires: 1989-06-23
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Abstract

Abstract MODELS OF ATOMS, MOLECULES AND RADICALS WHICH MAY BE MADE, TRANSPORTED AND STORED IN FLAT, PLANAR, SHEET FORM, AND WHICH MAY BE FOLDABLY ERECTED RAPIDLY AND CONVENIENTLY INTO THREE-DIMENTIONAL, SPATILLY-REPRESENTIVE CHEMICAL MODELS. FASTENING TABS AND ADHERED, OF AFFIXED, SO THAT EACH MODEL IS A RIGID, NON-COLLAPSIBLE, SHELL-LIKE STUCTURE. ATTACHMENT TONGUES BENT SLIGHTLY OUT OF THE PLANE OF THE SHEET MATERIAL TO FORM TONGUE RECEIVINGG POCKETS THEREUNDER PERMIT MODELS TO BE DETACHABLY AND SLIDABLY AFFIXED TO EACH OTHER. A PARTICULAR FEATURE OF THE INVENTION IS THAT BY WHICH STEARIC HINDRANCE AND OTHER SPACE-DEPENDENT PHENOMEAN CAN BE REPRESENTED BY USE OF A NOVEL ROTATABLE FASTENING ELEMENT.

Inventors

  • 👤 James B Pierce

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 16:28
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/26; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/38; Y10S24/41; Y10S52/00; Y10S52/10; Y10T; Y10T24/00; Y10T24/45

Claims Analysis

Total Claims: 0
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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) 1974-12-13 1975-06-14 1975-12-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-13 1979-06-14 1979-12-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-13 1983-06-14 1983-12-14 $7700.00 Window Closed / Lapsed

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