US3028181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seals for rotating shafts
Assignee: Individual
•
Filing: 1958-12-26
•
Granted: 1962-04-03
•
Expires: 1978-12-26
Abstract
No abstract record available.
Inventors
- 👤 Thompson Lee Lavere
- 👤 Ishmael W Corder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:57
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2127865A
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US2140356A
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US2258527A
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US2622902A
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US2418707A
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US2427656A
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US2478649A
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US2646999A
Cited
US2875696A
Cited
US2787960A
Cited
US2936715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |