US3410000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sealing device
Assignee: Neles Jamesbury Inc
•
Filing: 1966-05-16
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Granted: 1968-11-12
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Howard G Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/168; D; D06; D06B; D06B23/00; D06B23/14; D06B23/18
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |