US3191397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system including charge checking means
Assignee: General Electric Co
•
Filing: 1963-07-23
•
Granted: 1965-06-29
•
Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:49
CPC Classifications
F; F25; F25B; F25B45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2510881A
Cited
US2759340A
Cited
US2753693A
Cited
US2977773A
Cited
US3006155A
Cited
US3093976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |