Patent US2705912A successfully refreshed from Google Patents.
US2705912A
Expired / Lapsed
US
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Register structure
Assignee: CHAR GALE Manufacturing Co
•
Filing: 1952-06-06
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Granted: 1955-04-12
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Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Nick J Dovolis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:18
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US718446A
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US1336210A
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US1509572A
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US1438982A
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US1438981A
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US1785993A
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US1811231A
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US1756143A
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US1952707A
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US2104208A
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US2466353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |