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US2368645A
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Liquid sealing method
Assignee: SHELLMAR PRODUCTS Co
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Filing: 1942-02-20
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Granted: 1945-02-06
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Expires: 1962-02-20
Abstract
No abstract record available.
Inventors
- 👤 Sylva Oscar J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:39
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C65/00; B29C65/02; B29C65/022; B29C65/026; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/246; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/71; B29C65/18; Y; Y10; Y10S; Y10S383/00; Y10S383/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-02-06 | 1948-08-07 | 1949-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-06 | 1952-08-07 | 1953-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-06 | 1956-08-07 | 1957-02-06 | $7700.00 | Window Closed / Lapsed |