Patent US3042007A successfully refreshed from Google Patents.
US3042007A
Expired / Lapsed
US
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Boiler controller
Assignee: Beckman Coulter Inc
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Filing: 1958-07-28
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Granted: 1962-07-03
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Kun L Chien
- 👤 Erdem I Ergin
- 👤 Mar Corona Del
- 👤 Ling Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:55
CPC Classifications
F; F22; F22D; F22D5/00; F22D5/26; F22D5/30; F22D11/00
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |