Patent US3254838A successfully refreshed from Google Patents.
US3254838A
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Temperature control arrangements
Assignee: Robertshaw Controls Co
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Filing: 1962-09-17
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Granted: 1966-06-07
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Expires: 1982-09-17
Abstract
No abstract record available.
Inventors
- 👤 William W Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:38
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/30; G05D23/303; G05D23/1927; G05D23/193; G05D23/1931; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3051815A
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US3122199A
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US3062941A
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US3051813A
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US3062942A
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US3050611A
Cited
US3071676A
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US3097314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |