Patent JPS5827072A successfully refreshed from Google Patents.
US2944407A
Expired / Lapsed
US
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Refrigeration and heating apparatus of the absorption type for use on internal combustion engines including a muffler
Assignee: Individual
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Filing: 1958-02-27
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Granted: 1960-07-12
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Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 Wendell W Pettis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
F; F25; F25B; F25B17/00; F25B17/02; F25B17/04; F25B27/00; F25B27/02; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02A30/274; Y02B; Y02B30/00; Y02B30/62; Y02B30/625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |