Patent US3411858A successfully refreshed from Google Patents.
US3411858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion devices
Assignee: Individual
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Filing: 1966-09-12
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Granted: 1968-11-19
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Fuller Douglas Somerville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:45
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A COMBUSTION DEVICE WHEREIN IGNITION OF FUEL DELIVERED TO A BURNER IS EFFECTED BY SPONTANEOUS COMBUSTION OF A PYROPHORIC SUBSTANCE BROUGHT INTO CONTACT WITH THE AMBIENT ATMOSPHERE ADJACENT THE BURNER, THE DEVICE BEING PROVIDED WITH A FUEL RESERVOIR, A FUEL BURNER, A STORAGE RESERVOIR FOR THE PYROPHORIC SUBSTANCE, AND METERING MEANS FOR DELIVERING A MEASURED QUANTITY OF THE PYROPHORIC SUBSTANCE TO THE ATMOSPHERE ADJACENT THE BURNER, THE IMPROVEMENT WHICH COMPRISES AN ELONGATED STORAGE SEAL COMMUNICATING WITH THE PYROPHORIC SUBSTANCE RESERVOIR, METERING MEANS IN THE FORM OF AN ELON-
Claim 2
Dependent Claim
89 words
IN A COMBUSTION DEVICE WHEREIN IGNITION OF FUEL DELIVERED TO A BURNER IS EFFECTED BY SPONTANEOUS COMBUSTION OF A PYROPHORIC SUBSTANCE BROUGHT INTO CONTACT WITH THE AMBIENT ATMOSPHERE ADJACENT THE BURNER, THE DEVICE BEING PROVIDED WITH A FUEL RESERVOIR, A FUEL BURNER, A STORAGE RESERVOIR FOR THE PYROPHORIC SUBSTANCE, AND METERING MEANS FOR DELIVERING A MEASURED QUANTITY OF THE PYROPHORIC SUBSTANCE TO THE ATMOSPHERE ADJACENT THE BURNER, THE IMPROVEMENT WHICH COMPRISES AN ELONGATED STORAGE SEAL COMMUNICATING WITH THE PYROPHORIC SUBSTANCE RESERVOIR, METERING MEANS IN THE FORM OF AN ELON-
References Cited (Backward Citations)
US3085411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |