US2662741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser cooling unit
Assignee: BUILDICE Co Inc
•
Filing: 1948-09-13
•
Granted: 1953-12-15
•
Expires: 1968-09-13
Abstract
No abstract record available.
Inventors
- 👤 John R Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/04; F25B2339/00; F25B2339/04; F25B2339/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US848224A
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US1653407A
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US1861158A
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US2038536A
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US2120767A
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US2213622A
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US2200442A
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US2228484A
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US2297928A
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US2349668A
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US2379932A
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US2501518A
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US2498017A
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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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |