US3049892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defrosting of evaporator
Assignee: Individual
•
Filing: 1959-11-03
•
Granted: 1962-08-21
•
Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 Muffly Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:36
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/12; F25C5/00; F25C5/02; F25C5/04; F25C5/08; F25C5/10
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |