US2946608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuously washed shaft seal
Assignee: Syntron Co
•
Filing: 1955-10-27
•
Granted: 1960-07-26
•
Expires: 1975-10-27
Abstract
No abstract record available.
Inventors
- 👤 Sr Walter J Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:12
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; B; B63; B63H; B63H23/00; B63H23/32; B63H23/36; Y; Y10; Y10S; Y10S277/00; Y10S277/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US47329A
Cited
US331293A
Cited
US2736265A
Cited
GB190624955A
Cited
US1843122A
Cited
US2133487A
Cited
US2300385A
Cited
US2547185A
Cited
US2761709A
Cited
US2864631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |