Patent US3024008A successfully refreshed from Google Patents.
US3024008A
Expired / Lapsed
US
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Three-pipe air conditioning systems
Assignee: Borg Warner Corp
•
Filing: 1958-01-23
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Granted: 1962-03-06
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Expires: 1978-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert D Blum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:29
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2363294A
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US2357706A
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US2492757A
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US2500695A
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GB656492A
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US2715515A
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US2797068A
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US2915298A
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US2796740A
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US2928260A
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US2935857A
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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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |