US2859596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system
Assignee: GIRTON Mfg CO Inc
•
Filing: 1955-06-01
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Granted: 1958-11-11
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Expires: 1975-06-01
Abstract
No abstract record available.
Inventors
- 👤 Darl L Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:31
CPC Classifications
F; F25; F25B; F25B41/00; F25B2341/00; F25B2341/001; F25B2341/0011; F25B2341/0012; F25B2341/0016; F25B2400/00; F25B2400/23; F25B2500/00; F25B2500/01; F25B2500/18
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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |