US3088017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric continuous-flow heater
Assignee: Individual
•
Filing: 1958-12-15
•
Granted: 1963-04-30
•
Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Schomann Leonid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:26
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/101; F24H1/102; F24H1/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN ELECTRIC CONTINUOUS-FLOW HEATER COMPRISING A UNITARY ONE-PIECE BASE COMPOSED OF AN ELECTRICALLY INSULATING MATERIAL HAVING THEREIN INLET AND OUTLET ELECTRICAL WATER COLUMN RESISTANCE CHANNELS; A HEATING ELEMENT SUBASSEMBLY REMOVABLY MOUNTED ON SAID BASE COMPRISING A BODY MEMBER HAVING A HEATING CHANNEL THEREIN, AN ELECTRICAL HEATING COIL ARRANGED IN SAID HEATING CHANNEL TO PERMIT WATER TO CIRCULATE IN CONTACT WITH SAID HEATING COIL, AND ELECTRICAL TERMINALS MOUNTED ON SAID BODY MEMBER AND BEING CONNECTED TO SAID HEATING COIL; AND MEANS FOR CONNECTING SAID HEATING CHANNEL WITH SAID INLET AND OUTLET RESISTANCE CHANNELS WHEN SAID HEATER IS ASSEMBLED.
Claim 2
Dependent Claim
97 words
AN ELECTRIC CONTINUOUS-FLOW HEATER COMPRISING A UNITARY ONE-PIECE BASE COMPOSED OF AN ELECTRICALLY INSULATING MATERIAL HAVING THEREIN INLET AND OUTLET ELECTRICAL WATER COLUMN RESISTANCE CHANNELS; A HEATING ELEMENT SUBASSEMBLY REMOVABLY MOUNTED ON SAID BASE COMPRISING A BODY MEMBER HAVING A HEATING CHANNEL THEREIN, AN ELECTRICAL HEATING COIL ARRANGED IN SAID HEATING CHANNEL TO PERMIT WATER TO CIRCULATE IN CONTACT WITH SAID HEATING COIL, AND ELECTRICAL TERMINALS MOUNTED ON SAID BODY MEMBER AND BEING CONNECTED TO SAID HEATING COIL; AND MEANS FOR CONNECTING SAID HEATING CHANNEL WITH SAID INLET AND OUTLET RESISTANCE CHANNELS WHEN SAID HEATER IS ASSEMBLED.
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |