Patent US3280697A successfully refreshed from Google Patents.
US3280697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for conversion of drawings
Assignee: Marquardt Corp
•
Filing: 1964-04-15
•
Granted: 1966-10-25
•
Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Lyle B Henley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:50
CPC Classifications
G; G03; G03B; G03B15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE METHOD OF CONVERTING A THREE-VIEW SET OF PLANAR ORTHOGRAPHIC DRAWINGS TO A SINGLE VIEW AXONOMETRIC DRAWING, COMPRISING THE STEPS OF: PROJECTING AN OBLIQUE VIEW OF EACH OF SAID ORTHOGRAPHIC DRAWINGS ONTO AN IMAGE PLANE WHICH IS COPLANAR WITH THE PLANE OF SAID DRAWINGS TO PROVIDE A CORRESPONDING SET OF OBLIQUE PROJECTINS; GRAPHICALLY COPYING EACH OF SAID OBLIQUE PROJECTIONS, AT SAID IMAGE PLANE, IN MUTUAL JUXAPOSITION SO THAT ADJACENT IMAGE BOUNDARIES ARE SUBSTANTIALLY CONTIGUOUS.
Claim 2
Independent Claim
74 words
THE METHOD OF CONVERTING A THREE-VIEW SET OF PLANAR ORTHOGRAPHIC DRAWINGS TO A SINGLE VIEW AXONOMETRIC DRAWING, COMPRISING THE STEPS OF: PROJECTING AN OBLIQUE VIEW OF EACH OF SAID ORTHOGRAPHIC DRAWINGS ONTO AN IMAGE PLANE WHICH IS COPLANAR WITH THE PLANE OF SAID DRAWINGS TO PROVIDE A CORRESPONDING SET OF OBLIQUE PROJECTINS; GRAPHICALLY COPYING EACH OF SAID OBLIQUE PROJECTIONS, AT SAID IMAGE PLANE, IN MUTUAL JUXAPOSITION SO THAT ADJACENT IMAGE BOUNDARIES ARE SUBSTANTIALLY CONTIGUOUS.
References Cited (Backward Citations)
US3126809A
Cited
US2462150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |