US2927428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geothermic central plant for the production of energy, with uncondensable gases compressor-extractors directly operated by the engines producing the energy
Assignee: Individual
•
Filing: 1952-12-27
•
Granted: 1960-03-08
•
Expires: 1972-12-27
Abstract
No abstract record available.
Inventors
- 👤 Sala Antillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:10
CPC Classifications
F; F03; F03G; F03G4/00; F03G4/074; F01; F01K; F01K9/00; F01K9/02; Y; Y02; Y02E; Y02E10/00; Y02E10/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |