US3093323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light diffusors
Assignee: EDWIN F GUTH CO
•
Filing: 1961-10-12
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Granted: 1963-06-11
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Expires: 1981-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Edwin F Guth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:45
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/02; F21V11/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A LIGHT-CONTROLLING PANEL HAVING A LATTICE OF ELONGATE INTERSECTING PRISMS OF SUBSTANTIALLY TRANSPARENT MATERIAL FORMED OF SPACED LONGITUDINAL ELEMENTS AND SPACED TRANSVERSE ELEMENTS DEFINING A MULTIPLICITY OF GENERALLY FRUSTO-PYRAMIDAL OPENINGS THROUGH THE PANEL, SAID PRISMS BEING SUBSTANTIALLY TRIANGULAR IN CROSS-SECTION AND HAVING THEIR APICES AT THE UPPER SURFACE OF THE PANEL DISPOSED IN THE PLANE OF THE LARGER BASE OF SAID FRUSTOPYRAMIDAL OPENINGS, WHEREIN THE ANGLE INCLUDED BETWEEN THE CONVERGENT SURFACES OF SAID PRISMS WHICH DEFINE SAID APICES BEING BETWEEN THIRTY-FOUR AND FORTY-FIVE DEGREES AND THE BASE OF SAID PRISMS FORM THE LOWER SURFACE OF THE PANEL, THE IMPROVEMENT COMPRISING A PLURALITY OF REGULAR GROOVES AND RIBS DISPOSED PARALLEL TO THE LONGITUDINAL ELEMENTS AND FORMING A CONTINUOUS CORRUGATED LOWER SURFACE ON SAID PRISMS.
Claim 2
Dependent Claim
124 words
IN A LIGHT-CONTROLLING PANEL HAVING A LATTICE OF ELONGATE INTERSECTING PRISMS OF SUBSTANTIALLY TRANSPARENT MATERIAL FORMED OF SPACED LONGITUDINAL ELEMENTS AND SPACED TRANSVERSE ELEMENTS DEFINING A MULTIPLICITY OF GENERALLY FRUSTO-PYRAMIDAL OPENINGS THROUGH THE PANEL, SAID PRISMS BEING SUBSTANTIALLY TRIANGULAR IN CROSS-SECTION AND HAVING THEIR APICES AT THE UPPER SURFACE OF THE PANEL DISPOSED IN THE PLANE OF THE LARGER BASE OF SAID FRUSTOPYRAMIDAL OPENINGS, WHEREIN THE ANGLE INCLUDED BETWEEN THE CONVERGENT SURFACES OF SAID PRISMS WHICH DEFINE SAID APICES BEING BETWEEN THIRTY-FOUR AND FORTY-FIVE DEGREES AND THE BASE OF SAID PRISMS FORM THE LOWER SURFACE OF THE PANEL, THE IMPROVEMENT COMPRISING A PLURALITY OF REGULAR GROOVES AND RIBS DISPOSED PARALLEL TO THE LONGITUDINAL ELEMENTS AND FORMING A CONTINUOUS CORRUGATED LOWER SURFACE ON SAID PRISMS.
References Cited (Backward Citations)
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US2318716A
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US2398507A
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US2558422A
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DE1101318B
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US2977460A
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |