US2641664A
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Assignee: Honeywell Inc
•
Filing: 1948-09-18
•
Granted: 1953-06-09
•
Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 James B Knutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:29
CPC Classifications
H; H01; H01H; H01H5/00; H01H5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US154479A
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US2120938A
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US2057605A
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US2188438A
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US2185460A
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GB496180A
Cited
US2412123A
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US2320117A
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US2400262A
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US2415691A
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US2445435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |