US2983111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration machine and method of controlling same
Assignee: Trane Co
•
Filing: 1958-11-17
•
Granted: 1961-05-09
•
Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert G Miner
- 👤 Joseph R Lejk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:17
CPC Classifications
F; F25; F25B; F25B11/00; F25B1/00; F25B1/04; F25B1/053; F25B2339/00; F25B2339/04; F25B2339/047; F25B2700/00; F25B2700/13; F25B2700/135; F25B2700/1351
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1268079A
Cited
US2817213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |