US3268719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser system for light sources
Assignee: American Optical Corp
•
Filing: 1964-08-28
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Granted: 1966-08-23
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert B Tackaberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:34
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN ILLUMINATING SYSTEM COMPRISING A LIGHT SOURCE, A PAIR OF AXIALLY ALIGNED LENSES HAVING SAID SOURCE LOCATED THEREBETWEEN, THE FIRST OF SAID LENSES BEING POSITIONED TO IMAGE SAID LIGHT SOURCE IN ONE DIRECTION, THE SECOND OF SAID LENSES BEING POSITIONED TO IMAGE SAID LIGHT SOURCE AT INFINITY IN THE OPPOSITE DIRECTION, AND REFLECTING MEANS ASSOCIATED WITH SAID SECOND LENS FOR REFLECTING A REORIENTED IMAGE BACK THROUGH SAID SECOND LENS,
Claim 2
Dependent Claim
69 words
AN ILLUMINATING SYSTEM COMPRISING A LIGHT SOURCE, A PAIR OF AXIALLY ALIGNED LENSES HAVING SAID SOURCE LOCATED THEREBETWEEN, THE FIRST OF SAID LENSES BEING POSITIONED TO IMAGE SAID LIGHT SOURCE IN ONE DIRECTION, THE SECOND OF SAID LENSES BEING POSITIONED TO IMAGE SAID LIGHT SOURCE AT INFINITY IN THE OPPOSITE DIRECTION, AND REFLECTING MEANS ASSOCIATED WITH SAID SECOND LENS FOR REFLECTING A REORIENTED IMAGE BACK THROUGH SAID SECOND LENS,
References Cited (Backward Citations)
US237095A
Cited
US2789245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |