US2837286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature and humidity control system
Assignee: AMERICAN INSTR CO Inc
•
Filing: 1956-09-13
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Granted: 1958-06-03
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Expires: 1976-09-13
Abstract
No abstract record available.
Inventors
- 👤 Hugh N Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/30; F24F2110/00; F24F2110/10; F24F2110/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2204016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |