Patent US3082597A successfully refreshed from Google Patents.
US3082597A
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US
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Apparatus for injecting secondary air into engine exhaust gases and for other uses
Assignee: Universal Oil Products Co
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Filing: 1961-06-26
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Granted: 1963-03-26
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J J Hamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:44
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/30; F01N3/18; F01N3/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/28; Y10S55/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594906A
Cited
US2482754A
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US2547454A
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US2667031A
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US2851852A
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US2795103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |