Patent US3199568A successfully refreshed from Google Patents.
US3199568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil heating appliance
Assignee: Individual
•
Filing: 1962-07-03
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Granted: 1965-08-10
•
Expires: 1982-07-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert Baumanns
- 👤 Friedrich Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:35
CPC Classifications
F; F23; F23C; F23C99/00; F23D; F23D11/00; F23D11/36; F23D11/44; F23D11/441; F23C2700/00; F23C2700/02; F23C2700/023; F23C2700/026; F23C2700/04; F23C2700/043; Y; Y02; Y02E; Y02E20/00; Y02E20/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
AN OIL-BURNING HEATING HEATING APPLIANCE COMPRISING A BURNER PLATE AT WHICH THE OIL IS BURNED IN AIR, AN OIL SUPPLY CONDUIT, OIL PRESSURIZING MEANS CONNECTED TO ONE END OF SAID SUPPLY CONDUIT AND ADAPTED TO SUPPLY OIL THERETO UNDER PRESSURE, AN OIL VAPOE OUTLET MEANS CONNECTED TO THE OTHER END OF SAID SUPPLY CONDUIT, AN AIR INTAKE PIPE CONNECTION LEADING FROM SAID VAPOR OUTLET MEANS TO SAID BURNER PLATE, SAID BURNER PLATE BEING AN INFRA-RED BURNER, A HEAT EXCHANGER FOR PREHEATING COMBUSTION AIR SUP-
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |