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Patent US2428041A successfully refreshed from Google Patents.
US2428041A
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Sealing assembly
Assignee: Saywell Associates
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Filing: 1945-09-26
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Granted: 1947-09-30
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Expires: 1965-09-26
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Saywell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:38
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; F16C; F16C33/00; F16C33/72; F16C33/76; F16C33/78; F16C33/7816; F16C33/782; F16C33/7886
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) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |