US3135471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light mixer
Assignee: Pako Corp
•
Filing: 1960-07-05
•
Granted: 1964-06-02
•
Expires: 1980-07-05
Abstract
No abstract record available.
Inventors
- 👤 Roy A Clapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:56
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/54; G03B27/545; G03B27/547
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A LIGHT MIXER COMPRISING A HOLLOW ENCLOSURE IN THE FORM OF A TRUNCATED PYRAMID HAVING AN END WALL AND LATERAL WALL CONNECTED THERETO DEFINING A MIXING CHAMBER, SAID WALLS HAVING INTERIOR OPTICALLY DIFFUSE AND HIGHLY REFLECTIVE SURFACES, LIGHT SOURCES PRODUCING LIGHT FLUXES OF DIFFERENT COLORS, MEANS FOR INTRODUCING COLORED LIGHT FLUX FROM SAID LIGHT SOURCES INTO SAID CHAMBER AND AGAINST CERTAIN PORTIONS OF SAID SURFACES FROM WHICH SCATTERED MULTIPLE REFLECTIONS OCCUR COVERING THE ENTIRE INTERIOR SURFACE OF SAID ENCLOSURE, SAID ENCLOSURE HAVING AN EMISSION OPENING THEREIN THROUGH WHICH UNIFORMLY MIXED AND
Claim 2
Dependent Claim
91 words
A LIGHT MIXER COMPRISING A HOLLOW ENCLOSURE IN THE FORM OF A TRUNCATED PYRAMID HAVING AN END WALL AND LATERAL WALL CONNECTED THERETO DEFINING A MIXING CHAMBER, SAID WALLS HAVING INTERIOR OPTICALLY DIFFUSE AND HIGHLY REFLECTIVE SURFACES, LIGHT SOURCES PRODUCING LIGHT FLUXES OF DIFFERENT COLORS, MEANS FOR INTRODUCING COLORED LIGHT FLUX FROM SAID LIGHT SOURCES INTO SAID CHAMBER AND AGAINST CERTAIN PORTIONS OF SAID SURFACES FROM WHICH SCATTERED MULTIPLE REFLECTIONS OCCUR COVERING THE ENTIRE INTERIOR SURFACE OF SAID ENCLOSURE, SAID ENCLOSURE HAVING AN EMISSION OPENING THEREIN THROUGH WHICH UNIFORMLY MIXED AND
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |