US3234652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perspective viewer
Assignee: Individual
•
Filing: 1962-06-08
•
Granted: 1966-02-15
•
Expires: 1982-06-08
Abstract
No abstract record available.
Inventors
- 👤 Smith John Lang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:22
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/14; B43L13/16; B43L13/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A DEVICE FOR VIEWING AN OBJECT IN PERSPECTIVE COMPRISING A FRAME HAVING A VIEWING AXIS, AN OBJECT SUPPORT IN SAID FRAME INTERSECTING SAID AXIS, A GIMBAL FORK JOURNALLED ON SAID FRAME ON AN AXIS PERPENDICULAR TO SAID VIEWING AXIS, FIRST GRADUATED KNOB ON SAID FORK TO THE EXTERIOR OF SAID FRAME FOR ROTATING SAID FORK ABOUT ITS AXIS, SAID SUPPORT BEING PIVOTALLY MOUNTED ON SAID FORK ON AN AXIS PEPENDICULAR TO THE AXIS OF ROTATION OF SAID FORK, A GEAR RACK SECURED TO SAID SUPPORT, A PINION JOURNALLED ON THE AXIS OF SAID FORK AND MESHED WITH SAID RACK, A SECOND GRADUATED KNOB TO THE EXTERIOR OF SAID FRAME COAXIAL WITH AND IMMEDIATELY ADJACENT AND FIRST KNOB FOR ROTATING SAID PINION, SAID FRAME BEING TUBULAR AND SAID VIEWING AXIS COMPRISING THE AXIS OF THE TUBE, A VISUAL INDICATOR REMOVABLY AND ROTATABLY MOUNTED ON ONE END OF SAID TUBE AND INCLUDING A VIEWING SCREEN PERPENDICULAR TO SAID VIEWING AXIS, AXES INDICATION ON SAID VIEWING SCREEN AND A SCALE FOR INDICATING THE ANGULAR POSITION OF SAID AXES INDICATIONS RELATIVE TO SAID FRAME.
Claim 2
Independent Claim
180 words
A DEVICE FOR VIEWING AN OBJECT IN PERSPECTIVE COMPRISING A FRAME HAVING A VIEWING AXIS, AN OBJECT SUPPORT IN SAID FRAME INTERSECTING SAID AXIS, A GIMBAL FORK JOURNALLED ON SAID FRAME ON AN AXIS PERPENDICULAR TO SAID VIEWING AXIS, FIRST GRADUATED KNOB ON SAID FORK TO THE EXTERIOR OF SAID FRAME FOR ROTATING SAID FORK ABOUT ITS AXIS, SAID SUPPORT BEING PIVOTALLY MOUNTED ON SAID FORK ON AN AXIS PEPENDICULAR TO THE AXIS OF ROTATION OF SAID FORK, A GEAR RACK SECURED TO SAID SUPPORT, A PINION JOURNALLED ON THE AXIS OF SAID FORK AND MESHED WITH SAID RACK, A SECOND GRADUATED KNOB TO THE EXTERIOR OF SAID FRAME COAXIAL WITH AND IMMEDIATELY ADJACENT AND FIRST KNOB FOR ROTATING SAID PINION, SAID FRAME BEING TUBULAR AND SAID VIEWING AXIS COMPRISING THE AXIS OF THE TUBE, A VISUAL INDICATOR REMOVABLY AND ROTATABLY MOUNTED ON ONE END OF SAID TUBE AND INCLUDING A VIEWING SCREEN PERPENDICULAR TO SAID VIEWING AXIS, AXES INDICATION ON SAID VIEWING SCREEN AND A SCALE FOR INDICATING THE ANGULAR POSITION OF SAID AXES INDICATIONS RELATIVE TO SAID FRAME.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |