US2685463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal
Assignee: JET SHAFT SEALS Inc
•
Filing: 1949-12-27
•
Granted: 1954-08-03
•
Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Melville R Pollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:14
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1339156A
Cited
US1571633A
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US1872182A
Cited
US1927543A
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US2143825A
Cited
US2352784A
Cited
US2515410A
Cited
US2419385A
Cited
US2556225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |