Patent CH190239A successfully refreshed from Google Patents.
Patent US2818285A successfully refreshed from Google Patents.
US2818285A
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Sealing assembly
Assignee: Sealol Corp
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Filing: 1954-05-19
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Granted: 1957-12-31
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Expires: 1974-05-19
Abstract
No abstract record available.
Inventors
- 👤 Harold F Greiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:26
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; F16J15/3464; Y; Y10; Y10S; Y10S285/00; Y10S285/90; Y10S285/91; Y10S285/918
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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |