US3229570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection microscope
Assignee: Individual
•
Filing: 1960-07-21
•
Granted: 1966-01-18
•
Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Richard T Erban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/36; G02B21/364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
MAGNIFICATION COMPRISING: STAGE MEANS FOR SUPPORTING AN OBJECT, SAID STAGE MEANS BEING POSITIONED FOR THE CONVENIENT PERFORMANCE OF STEPS OF MANIPULATION ON SAID OBJECT BY AN OPERATOR WILL THE EYES OF THE OPERATOR POSITIONED AT A PREDETERMINED VIEWING POSITION WHEREIN SAID OBJECT IS DIRECTLY OBSERVABLE THROUGH A DIRECT VIEWING PATH; HIGH INTENSITY ILLUMINATION MEANS CAUSING SAID OBJECT TO THE BRIGHTLY ILLUMINATED; PROJECTION MICROSCOPE MEANS COMPRISING OBJECTIVE LENS MEANS POSITIONED TO RECEIVE LIGHT FROM SAID ILLUMINATED OBJECT AND A TRANSLUCENT VIEWING SCREEN UPON WHICH AN ENLARGED IMAGE OF SAID OBJECT IS PROJECTED, SAID VIEWING SCREEN HAVING AN EDGE PORTION SUBSTANTIALLY CONTIGUOUS WITH AN EDGE PORTION OF SAID DIRECT VIEWING PATH, SAID SCREEN BEING SO POSITIONED THAT, IF EXTENDED PATH, SAID CONTIGUOUS EDGE PORTIONS, IT WOULD INTERCEPT SAID VIEWING PATH SUBSTANTIALLY PERPENDICULARLY, SAID MICROSCOPE MEANS FURTHER COMPRISING IMAGE ERECTING MEANS CAUSING SAID ENLARGE IMAGE TO BE ORIENTED IN ALL RESPECTS IN THE SAME DIRECTION AS SAID OBJECT WHEN OBSERVED THROUGH SAID DIRECT VIEWING PATH; AND LIGHT ATTENUATING MEANS INTERPOSED IN SAID DIRECT VIEWING PATH, SAID ATTENUATING MEANS CAUSING THE INTENSITY OF ILLUMINATION OF SAID BRIGHTLY ILLUMINATED OBJECT WHEN OBSERVED THROUGH SAID DIRECT VIEWING PATH TO BE COMPATIBLE WITH THE INTENSITY OF ILLUMINATION OF SAID ENLARGED IMAGE.
Claim 2
Dependent Claim
204 words
MAGNIFICATION COMPRISING: STAGE MEANS FOR SUPPORTING AN OBJECT, SAID STAGE MEANS BEING POSITIONED FOR THE CONVENIENT PERFORMANCE OF STEPS OF MANIPULATION ON SAID OBJECT BY AN OPERATOR WILL THE EYES OF THE OPERATOR POSITIONED AT A PREDETERMINED VIEWING POSITION WHEREIN SAID OBJECT IS DIRECTLY OBSERVABLE THROUGH A DIRECT VIEWING PATH; HIGH INTENSITY ILLUMINATION MEANS CAUSING SAID OBJECT TO THE BRIGHTLY ILLUMINATED; PROJECTION MICROSCOPE MEANS COMPRISING OBJECTIVE LENS MEANS POSITIONED TO RECEIVE LIGHT FROM SAID ILLUMINATED OBJECT AND A TRANSLUCENT VIEWING SCREEN UPON WHICH AN ENLARGED IMAGE OF SAID OBJECT IS PROJECTED, SAID VIEWING SCREEN HAVING AN EDGE PORTION SUBSTANTIALLY CONTIGUOUS WITH AN EDGE PORTION OF SAID DIRECT VIEWING PATH, SAID SCREEN BEING SO POSITIONED THAT, IF EXTENDED PATH, SAID CONTIGUOUS EDGE PORTIONS, IT WOULD INTERCEPT SAID VIEWING PATH SUBSTANTIALLY PERPENDICULARLY, SAID MICROSCOPE MEANS FURTHER COMPRISING IMAGE ERECTING MEANS CAUSING SAID ENLARGE IMAGE TO BE ORIENTED IN ALL RESPECTS IN THE SAME DIRECTION AS SAID OBJECT WHEN OBSERVED THROUGH SAID DIRECT VIEWING PATH; AND LIGHT ATTENUATING MEANS INTERPOSED IN SAID DIRECT VIEWING PATH, SAID ATTENUATING MEANS CAUSING THE INTENSITY OF ILLUMINATION OF SAID BRIGHTLY ILLUMINATED OBJECT WHEN OBSERVED THROUGH SAID DIRECT VIEWING PATH TO BE COMPATIBLE WITH THE INTENSITY OF ILLUMINATION OF SAID ENLARGED IMAGE.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |