Patent US2459235A successfully refreshed from Google Patents.
US2459235A
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Flame sealing apparatus
Assignee: Visking Corp
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Filing: 1946-04-05
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Granted: 1949-01-18
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Expires: 1966-04-05
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Hewitt
- 👤 Sylvester F Clement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:44
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/10; B65B51/24; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C65/78; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/836; B29C66/431; B29C66/4312
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) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |