Patent US2286621A successfully refreshed from Google Patents.
US2632305A
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US
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Refrigerating system
Assignee: General Controls Co
•
Filing: 1950-08-14
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Granted: 1953-03-24
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Expires: 1970-08-14
Abstract
No abstract record available.
Inventors
- 👤 Harold J Matteson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:25
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2155516A
Cited
US2197582A
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US2309773A
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US2418853A
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US2523451A
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US2506757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |