US3462159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating-ring type shaft seal
Assignee: BBC Brown Boveri AG Germany
•
Filing: 1967-04-27
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Granted: 1969-08-19
•
Expires: 1987-04-27
Abstract
No abstract record available.
Inventors
- 👤 Hans Baumann
- 👤 Edoardo Erni
- 👤 Attila Horvath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:04
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F04D29/128; F16; F16J; F16J15/00; F16J15/44; F16J15/441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1689874A
Cited
US2265953A
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US2621946A
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US2538422A
Cited
BE531064A
Cited
US3093382A
Cited
US3047299A
Cited
US3155393A
Cited
US3347552A
Cited
US3315968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |