Patent US2727709A successfully refreshed from Google Patents.
US2727709A
Expired / Lapsed
US
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Automatic pilot control and mounting therefor
Assignee: Robertshaw Controls Co
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Filing: 1953-04-02
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Granted: 1955-12-20
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Expires: 1973-04-02
Abstract
No abstract record available.
Inventors
- 👤 Weber Victor
- 👤 William S Kunzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:43
CPC Classifications
F; F23; F23Q; F23Q9/00; F23Q9/02; F23Q9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078453A
Cited
US2355216A
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US2544930A
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US2536233A
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US2519827A
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US2535602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |