US2948554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary seal
Assignee: Individual
•
Filing: 1957-07-29
•
Granted: 1960-08-09
•
Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Mahand Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:18
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/087; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3448
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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |