US2949325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure sealing device
Assignee: Parker Hannifin Corp
•
Filing: 1956-02-27
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Granted: 1960-08-16
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Expires: 1976-02-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Nenzell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:16
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; Y; Y10; Y10S; Y10S285/00; Y10S285/91; Y10S411/00; Y10S411/90; Y10S411/901
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |