US2598266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Range and range top extension
Assignee: CRIBBEN AND SEXTON Co
•
Filing: 1950-03-30
•
Granted: 1952-05-27
•
Expires: 1970-03-30
Abstract
No abstract record available.
Inventors
- 👤 George W Kamin
- 👤 Lawrence E Wolske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:19
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB519861A
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US167689A
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US207798A
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US313940A
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DE469634C
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US892779A
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US1431211A
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US2059735A
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FR813553A
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US2321167A
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US2289523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |