Patent US3476488A successfully refreshed from Google Patents.
US3476488A
Expired / Lapsed
US
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Pump with spherical pump housing
Assignee: Svenska Maskinverken AB
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Filing: 1967-11-01
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Granted: 1969-11-04
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Expires: 1987-11-01
Abstract
No abstract record available.
Inventors
- 👤 Lars Axel Chambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/426; F04D29/44; F04D29/445; Y; Y10; Y10S; Y10S415/00; Y10S415/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US735692A
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CH88945A
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DE378906C
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GB262458A
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AT124621B
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US2114780A
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FR807884A
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GB572053A
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US2887958A
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US3160107A
Cited
US3282221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |