Patent US6338637B1 successfully refreshed from Google Patents.
US2691850A
Expired / Lapsed
US
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Heat baffle for automatic sealing machines
Assignee: Westinghouse Electric Corp
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Filing: 1953-02-27
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Granted: 1954-10-19
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Expires: 1973-02-27
Abstract
No abstract record available.
Inventors
- 👤 Eber Mortimer
- 👤 John A Storms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
F; F21; F21K; F21K5/00; F21K5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1742153A
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US1712670A
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US1915361A
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US2197527A
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US2295034A
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US2322728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |