Patent US5310881A successfully refreshed from Google Patents.
US2982148A
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Control device
Assignee: Robertshaw Controls Co
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Filing: 1957-09-30
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Granted: 1961-05-02
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Wilbur F Jackson
- 👤 Theodore J Dykzeul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:50
CPC Classifications
G; G05; G05G; G05G23/00; F; F16; F16K; F16K37/00; F16K37/0008; G05G5/00; G05G5/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/20576; Y10T74/20582; Y10T74/2063; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |