Patent US3486174A successfully refreshed from Google Patents.
US3486174A
Expired / Lapsed
US
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Device for elimination of unpleasant smell at electric closets
Assignee: HAKANSSONS IND AB
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Filing: 1967-06-26
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Granted: 1969-12-30
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Expires: 1987-06-26
Abstract
No abstract record available.
Inventors
- 👤 Hans Josef Nordstedt
- 👤 Lars Folke Delin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:50
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/02; A47K11/023; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2855494A
Cited
US3020559A
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US3068812A
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US3169497A
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US3215501A
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US3224842A
Cited
US3202118A
Cited
US3219418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |