US3433411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary thermostatic control device with dual temperature sensors
Assignee: Robertshaw Controls Co
•
Filing: 1966-06-06
•
Granted: 1969-03-18
•
Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Wilbur F Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:04
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/10; F23N5/105; F22; F22B; F22B37/00; F22B37/02; F22B37/42; F23N5/04; F23N5/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US808689A
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US1387853A
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US1678407A
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US1794531A
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US2312479A
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US3066205A
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US3029026A
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US3306109A
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US3291390A
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US3320388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |