US5367884B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generator-absorber-heat exchange heat transfer apparatus and method and use thereof in a heat pump
Assignee: Phillips Engineering Co
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Filing: 1993-06-15
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Granted: 1996-12-31
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Expires: 2013-06-15
Abstract
No abstract record available.
Inventors
- 👤 Benjamin A Phillips
- 👤 Thomas S Zawacki
- 👤 Joseph Marsala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:22
CPC Classifications
F; F25; F25B; F25B25/00; F25B25/02; F25B15/00; F25B15/02; F25B29/00; F25B29/006; F25B2315/00; F25B2315/002; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-12-31 | 2000-07-01 | 2000-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-31 | 2004-07-01 | 2004-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-31 | 2008-07-01 | 2008-12-31 | $7700.00 | Window Closed / Lapsed |