Patent US3359657A successfully refreshed from Google Patents.
US3359657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geometric structure and method of forming the same
Assignee: Individual
•
Filing: 1966-01-15
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Granted: 1967-12-26
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Expires: 1986-01-15
Abstract
No abstract record available.
Inventors
- 👤 Donald D Hedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:49
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; G; G09; G09B; G09B23/00; G09B23/02; G09B23/04; B29C37/00; B29C37/0053; B29C37/0057; B29L; B29L2009/00; Y; Y10; Y10S; Y10S52/00; Y10S52/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A BLANK FOR FORMING A GEOMETRIC MODEL, COMPRISING A LAMINATED SHEET OF PLASTIC HAVING THE SHAPE OF A GEOMETRIC SOLID IN LAY-FLAT CONDITION, SAID SHEET HAVING A FIRST LAYER OF RELATIVELY RIGID PLASTIC AND A SECOND LAYER OF RELATIVELY FLEXIBLE AND STRETCHABLE PLASTIC SECURED TO SAID FIRST SHEET, SAID FIRST LAYER BEING SCORED ALONG ITS EXPOSED SURFACE TO DEFINE LINES OF STRUCTURAL WEAKNESS CAPABLE OF FRACTURING WHEN SAID SHEET IS FOLDED INTO THE SHAPE OF A GEOMETRIC SOLID, AND SAID SECOND LAYER BEING CAPABLE OF STRETCHING OVER AND ABOUT THE FRACTURE LINES OF SAID FIRST LAYER TO PROVIDE A SMOOTH OUTER COVERING FOR SAID MODEL WHEN SAID SHEET IS FOLDED.
Claim 2
Dependent Claim
110 words
A BLANK FOR FORMING A GEOMETRIC MODEL, COMPRISING A LAMINATED SHEET OF PLASTIC HAVING THE SHAPE OF A GEOMETRIC SOLID IN LAY-FLAT CONDITION, SAID SHEET HAVING A FIRST LAYER OF RELATIVELY RIGID PLASTIC AND A SECOND LAYER OF RELATIVELY FLEXIBLE AND STRETCHABLE PLASTIC SECURED TO SAID FIRST SHEET, SAID FIRST LAYER BEING SCORED ALONG ITS EXPOSED SURFACE TO DEFINE LINES OF STRUCTURAL WEAKNESS CAPABLE OF FRACTURING WHEN SAID SHEET IS FOLDED INTO THE SHAPE OF A GEOMETRIC SOLID, AND SAID SECOND LAYER BEING CAPABLE OF STRETCHING OVER AND ABOUT THE FRACTURE LINES OF SAID FIRST LAYER TO PROVIDE A SMOOTH OUTER COVERING FOR SAID MODEL WHEN SAID SHEET IS FOLDED.
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |