Patent US3224339A successfully refreshed from Google Patents.
US3224339A
Expired / Lapsed
US
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Method and apparatus for cutting topographic models
Assignee: Individual
•
Filing: 1963-12-16
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Granted: 1965-12-21
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Donald W Nusbaum
- 👤 Nils C Nekalson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:35
CPC Classifications
B; B44; B44B; B44B1/00; B44B1/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/30112; Y10T409/301176; Y10T409/302856
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD OF CUTTING A TOPOGRAPHICAL MODEL FROM A CONTOUR MAP COMPRISNG THE STEPS OF: (A) SUSPENDING THE WORK PIECE FROM WHICH THE MODEL IS TO BE CUT TO THE UNDERSIDE OF A SUBSTANTIALLY HORIZONTAL PLATFORM; (B) PLACING A TRANSPARENT, SUBSTANTIALLY HORIZONTAL, FREE STANDING SURFACE BELOW THE SUSPENDED WORK PIECE AND ILLUMINATING THE TRANSPARENT SURFACE FROM BELOW; (C) PLACING THE POSITIVE PRINT OF THE CONTOUR MAP FACE DOWN UPON THE TRANSPARENT SURFACE SO THAT THE CONTOUR LINES VISIBLE FROM ABOVE ARE REVERSED; (D) MOVINGLY SUPPORTING A VERTICALLY EXTENSIBLE AND HORIZONTALLY SLIDABLE CONTOUR CUTTER MEANS UPON THE PRINT COVERED TRANSPARENT SURFACE AND FOLLOWING EACH REVERSED CONTOUR LINE; AND (E) SUCCESSIVELY ADJUSTING THE VERTICAL HEIGHT OF THE CONTOUR CENTER MEANS TO CORRESPOND TO THE SUCCESSIVE CONTOUR LINES TO BE CUT.
Claim 2
Independent Claim
128 words
THE METHOD OF CUTTING A TOPOGRAPHICAL MODEL FROM A CONTOUR MAP COMPRISNG THE STEPS OF: (A) SUSPENDING THE WORK PIECE FROM WHICH THE MODEL IS TO BE CUT TO THE UNDERSIDE OF A SUBSTANTIALLY HORIZONTAL PLATFORM; (B) PLACING A TRANSPARENT, SUBSTANTIALLY HORIZONTAL, FREE STANDING SURFACE BELOW THE SUSPENDED WORK PIECE AND ILLUMINATING THE TRANSPARENT SURFACE FROM BELOW; (C) PLACING THE POSITIVE PRINT OF THE CONTOUR MAP FACE DOWN UPON THE TRANSPARENT SURFACE SO THAT THE CONTOUR LINES VISIBLE FROM ABOVE ARE REVERSED; (D) MOVINGLY SUPPORTING A VERTICALLY EXTENSIBLE AND HORIZONTALLY SLIDABLE CONTOUR CUTTER MEANS UPON THE PRINT COVERED TRANSPARENT SURFACE AND FOLLOWING EACH REVERSED CONTOUR LINE; AND (E) SUCCESSIVELY ADJUSTING THE VERTICAL HEIGHT OF THE CONTOUR CENTER MEANS TO CORRESPOND TO THE SUCCESSIVE CONTOUR LINES TO BE CUT.
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |