Patent US3388913A successfully refreshed from Google Patents.
US3388913A
Expired / Lapsed
US
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Mechanical seal
Assignee: Borg Warner Corp
•
Filing: 1965-06-03
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Granted: 1968-06-18
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Tracy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/363; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2247505A
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US2479265A
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US2508097A
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US2559963A
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US2740648A
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US2887330A
Cited
US3147013A
Cited
US3181874A
Cited
US3191945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |