US3459430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical seal assembly
Assignee: Borg Warner Corp
•
Filing: 1967-07-06
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Granted: 1969-08-05
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Rowland E Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:33
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/58; F04D29/586; F04D29/5866; F04D29/08; F04D29/10; F04D29/106; F04D29/108; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/38; Y; Y10; Y10S; Y10S277/00; Y10S277/928; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |