US3226538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminating means
Assignee: Individual
•
Filing: 1963-11-19
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Granted: 1965-12-28
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Expires: 1983-11-19
Abstract
No abstract record available.
Inventors
- 👤 Roberto L Bustamante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
F; F21; F21L; F21L4/00; F21L4/005; F21L2/00; F21V; F21V19/00; F21V19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A FLASHLIGHT HAVING A PROTECTIVE EXTERIOR CASING, A SOURCE OF ELECTRIC POWER, SWITCH MEANS IN ELECTRICAL CONTACT WITH SAID SOURCE OF ELECTRIC POWER, AND A PRIMARY LIGHT SOURCE, THE IMPROVEMENT COMPRISING PROVIDING A SECONDARY LIGHT SOURCE IN AN AREA OF THE PROTECTIVE EXTERIOR CASING AS A SEPARABLE ASSEMBLY PROVIDED WITH A PROTECTIVE CASING OF INSULATING MATERIAL, FIRST AND SECOND ELECTRICAL CONTACT MEANS BEING INSULATED FROM SAID SECOND ELECTRICAL CONTACT MEANS BEING INSULATED FROM SAID SECOND ELECTRICAL CONTACT MEANS, SAID FIRST ELECTRICAL CONTACT MEANS PROVIDING ELECTRICAL CONNECTION BETWEEN SAID SOURCE OF ELECTRIC POWER AND SAID PRIMARY AND SECONDARY LIGHT SOURCES, SAID SECOND ELECTRICAL CONTACT MEANS BEING IN ELECTRICAL CONTACT WITH SAID SECONDARY LIGHT SOURCE, AND MEANS ADAPTING SAID ELECTRICAL SWITCH MEANS TO CONTACT SAID ELECTRICAL CONTACT MEANS AND THEREBY COMPLETE THE ELECTRICAL CIRCUIT BETWEEN SAID SOURCE OF ELECTRIC POWER AND SAID SECONDARY LIGHT SOURCE.
Claim 2
Dependent Claim
144 words
IN A FLASHLIGHT HAVING A PROTECTIVE EXTERIOR CASING, A SOURCE OF ELECTRIC POWER, SWITCH MEANS IN ELECTRICAL CONTACT WITH SAID SOURCE OF ELECTRIC POWER, AND A PRIMARY LIGHT SOURCE, THE IMPROVEMENT COMPRISING PROVIDING A SECONDARY LIGHT SOURCE IN AN AREA OF THE PROTECTIVE EXTERIOR CASING AS A SEPARABLE ASSEMBLY PROVIDED WITH A PROTECTIVE CASING OF INSULATING MATERIAL, FIRST AND SECOND ELECTRICAL CONTACT MEANS BEING INSULATED FROM SAID SECOND ELECTRICAL CONTACT MEANS BEING INSULATED FROM SAID SECOND ELECTRICAL CONTACT MEANS, SAID FIRST ELECTRICAL CONTACT MEANS PROVIDING ELECTRICAL CONNECTION BETWEEN SAID SOURCE OF ELECTRIC POWER AND SAID PRIMARY AND SECONDARY LIGHT SOURCES, SAID SECOND ELECTRICAL CONTACT MEANS BEING IN ELECTRICAL CONTACT WITH SAID SECONDARY LIGHT SOURCE, AND MEANS ADAPTING SAID ELECTRICAL SWITCH MEANS TO CONTACT SAID ELECTRICAL CONTACT MEANS AND THEREBY COMPLETE THE ELECTRICAL CIRCUIT BETWEEN SAID SOURCE OF ELECTRIC POWER AND SAID SECONDARY LIGHT SOURCE.
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |