Patent US2487843A successfully refreshed from Google Patents.
US2487843A
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Chart reroll mechanism
Assignee: Honeywell Inc
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Filing: 1945-02-10
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Granted: 1949-11-15
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Expires: 1965-02-10
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:33
CPC Classifications
G; G01; G01R; G01R13/00; G01D; G01D15/00; G01D15/24; G06; G06G; G06G7/00; G06G7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US877232A
Cited
US1691414A
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US1815681A
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US1831790A
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US1953869A
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US2034543A
Cited
US2321273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |