Patent US2494135A successfully refreshed from Google Patents.
US2494135A
Expired / Lapsed
US
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Control instrument
Assignee: Honeywell Inc
•
Filing: 1945-02-27
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Granted: 1950-01-10
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Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 John F Maienshein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/1927; G05D23/193; G05D23/1931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775682A
Cited
US1815061A
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US1893847A
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US2202218A
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US2232202A
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US2307229A
Cited
US2359651A
Cited
US2385308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |