Patent US2608969A successfully refreshed from Google Patents.
Patent US2768508A successfully refreshed from Google Patents.
US2768508A
Expired / Lapsed
US
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Refrigerator condenser
Assignee: Individual
•
Filing: 1953-03-30
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Granted: 1956-10-30
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Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert H Guyton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:46
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F25B2339/00; F25B2339/04; F25B2339/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US731469A
Cited
US1619195A
Cited
US1698350A
Cited
US1985931A
Cited
US2135875A
Cited
US2029891A
Cited
US2085191A
Cited
US2056022A
Cited
US2349693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |