Patent US4839228A successfully refreshed from Google Patents.
Patent US3359961A successfully refreshed from Google Patents.
US3359961A
Expired / Lapsed
US
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Fume eliminator
Assignee: Individual
•
Filing: 1965-06-01
•
Granted: 1967-12-26
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Paolo John De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F01M13/023; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7748; Y10T137/7749
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3145697A
Cited
US2359485A
Cited
US2906252A
Cited
US3138148A
Cited
US3241537A
Cited
US3105477A
Cited
US3263699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |