Patent US3148835A successfully refreshed from Google Patents.
US3148835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated gaslight and mantle
Assignee: JACOBSEN PRODUCTS Inc
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Filing: 1962-02-19
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Granted: 1964-09-15
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Arnold L Horelick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:48
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/28; H01K1/34; F; F21; F21W; F21W2121/00; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A LIGHT DIFFUSER SIMULATING A GAS MANTLE FOR USE ON INCANDESCENT LAMP BULBS COMPRISING A GENERALLY CYLINDRICAL FLEXIBLE SLEEVE OPEN AT ONE END AND CLOSED AT THE OTHER AND OF A DIAMETER TO SNUGLY SLIDE OVER AND BE SUPPORTED ENTIRELY BY THE CYLINDRICAL GLASS ENVELOPE OF AN INCANDESCENT FILAMENT TYPE ELECTRIC LAMP BULBS, THE SLEEVE COMPRISING A FABRIC FORMED FROM BRAIDED GLASS FIBER THREADS CLOSELY WOVEN TO OBSCURE THE OUTLINE OF THE FILAMENT OF THE LAMP OVER WHICH IT IS SUPPORTED BUT PREVIOUS TO THE CIRCULATION OF AIR THROUGH IT AND PROVIDING AGAINST THE ENVELOPE OF THE INCANDESCENT BULB TO WHICH IT IS APPLIED AN EXTENDED HEAT DISSIPATING SURFACE FOR THE GLASS ENVELOPE BY INCREASING THE HEAT RADIATING AND CONVECTION AREAS, SAID THREADS BEING TRANSULCENT TO VISIBLE LIGHT WHEREBY TO PRODUCE THE ILLUSION OF INCANDESCENCE WHEN THE LAMP TO WHICH THE SLEEVE IS APPLIED IS OPERATING.
Claim 2
Dependent Claim
146 words
A LIGHT DIFFUSER SIMULATING A GAS MANTLE FOR USE ON INCANDESCENT LAMP BULBS COMPRISING A GENERALLY CYLINDRICAL FLEXIBLE SLEEVE OPEN AT ONE END AND CLOSED AT THE OTHER AND OF A DIAMETER TO SNUGLY SLIDE OVER AND BE SUPPORTED ENTIRELY BY THE CYLINDRICAL GLASS ENVELOPE OF AN INCANDESCENT FILAMENT TYPE ELECTRIC LAMP BULBS, THE SLEEVE COMPRISING A FABRIC FORMED FROM BRAIDED GLASS FIBER THREADS CLOSELY WOVEN TO OBSCURE THE OUTLINE OF THE FILAMENT OF THE LAMP OVER WHICH IT IS SUPPORTED BUT PREVIOUS TO THE CIRCULATION OF AIR THROUGH IT AND PROVIDING AGAINST THE ENVELOPE OF THE INCANDESCENT BULB TO WHICH IT IS APPLIED AN EXTENDED HEAT DISSIPATING SURFACE FOR THE GLASS ENVELOPE BY INCREASING THE HEAT RADIATING AND CONVECTION AREAS, SAID THREADS BEING TRANSULCENT TO VISIBLE LIGHT WHEREBY TO PRODUCE THE ILLUSION OF INCANDESCENCE WHEN THE LAMP TO WHICH THE SLEEVE IS APPLIED IS OPERATING.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |