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US3476397A
Expired / Lapsed
US
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Seal between stationary and rotary parts
Assignee: Alfa Laval AB
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Filing: 1967-01-31
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Granted: 1969-11-04
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Expires: 1987-01-31
Abstract
No abstract record available.
Inventors
- 👤 Georg M I Thoren
- 👤 Lennart V S Lundahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:03
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/346; B; B04; B04B; B04B9/00; B04B9/12; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F16J15/3464; F16J15/3472
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2586739A
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 |