Patent US2844742A successfully refreshed from Google Patents.
US2844742A
Expired / Lapsed
US
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Temperature-controlled enclosure for electrical components
Assignee: PREMIER RES LAB Inc
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Filing: 1953-11-16
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Granted: 1958-07-22
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Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Font Ramon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:28
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/05; H03H9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2131826A
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US2210045A
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US2203545A
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US2273711A
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US2410041A
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US2390048A
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US2462850A
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US2438345A
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US2470134A
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US2651731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |