US3308267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizer
Assignee: DeVilbiss Co
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Filing: 1964-09-30
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Granted: 1967-03-07
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 Donald E Fenstermaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:37
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/28; F22B1/30; A; A61; A61M; A61M11/00; A61M11/04; A61M11/041; A61M11/042; A61M11/044; F24; F24H; F24H1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A STEAM VAPORIZER HAVING A CHAMBER FOR WATER OR SIMILAR ELECTROLYTE AND TWO SPACED ELONGATED, FACING ELECTRODES DISPOSED IN SAID CHAMBER NORMALLY IMMERSED TO AT LEAST A PREDETERMINED DEPTH IN SAID ELECTROLYTE AND BETWEEN WHICH ELECTRICAL CURRENT PASSES TO CAUSE HEATIANG OF SAID ELECTROLYTE, THE IMPROVEMENT COMPRISING A FACING STRIP OF WATER IMPERVIOUS INSULATING MATERIAL CARRIED BY ONE OF SAID ELECTRODES AND BETWEEN THE TWO ELECTRODES, SAID STRIP OF INSULATING MATERIAL CONFORMING IN SHAPE TO THE SHAPE OF SAID ONE OF SAID ELECTRODES AND HAVING A LENGTH AT LEAST COEXTENSIVE WITH THE NORMALLY IMMERSED PORTION OF SAID ELECTRODE.
Claim 2
Dependent Claim
99 words
IN A STEAM VAPORIZER HAVING A CHAMBER FOR WATER OR SIMILAR ELECTROLYTE AND TWO SPACED ELONGATED, FACING ELECTRODES DISPOSED IN SAID CHAMBER NORMALLY IMMERSED TO AT LEAST A PREDETERMINED DEPTH IN SAID ELECTROLYTE AND BETWEEN WHICH ELECTRICAL CURRENT PASSES TO CAUSE HEATIANG OF SAID ELECTROLYTE, THE IMPROVEMENT COMPRISING A FACING STRIP OF WATER IMPERVIOUS INSULATING MATERIAL CARRIED BY ONE OF SAID ELECTRODES AND BETWEEN THE TWO ELECTRODES, SAID STRIP OF INSULATING MATERIAL CONFORMING IN SHAPE TO THE SHAPE OF SAID ONE OF SAID ELECTRODES AND HAVING A LENGTH AT LEAST COEXTENSIVE WITH THE NORMALLY IMMERSED PORTION OF SAID ELECTRODE.
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |