US2705650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced rotary fluid seal
Assignee: EIDP Inc
•
Filing: 1950-07-15
•
Granted: 1955-04-05
•
Expires: 1970-07-15
Abstract
No abstract record available.
Inventors
- 👤 Saum Arthur Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:34
CPC Classifications
F; F16; F16L; F16L39/00; F16L39/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US921771A
Cited
US1130358A
Cited
US1769905A
Cited
US1825251A
Cited
US2010930A
Cited
US1929635A
Cited
US2385421A
Cited
US2402224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |