Patent US3017112A successfully refreshed from Google Patents.
US3017112A
Expired / Lapsed
US
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Air heater fuel control system
Assignee: American Air Filter Co Inc
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Filing: 1958-09-29
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Granted: 1962-01-16
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Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 Paul J Amundson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:57
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2064; F24H9/2085; F24H15/00; F24H15/20; F24H15/208; F24H15/30; F24H15/305; F24H15/31; F24H15/355; F24H15/36; F24H15/40; F24H15/407; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/1928; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 0
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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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |