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Patent US3474632A successfully refreshed from Google Patents.
US3474632A
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US
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Thermoelectric conditioning apparatus
Assignee: York International Corp
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Filing: 1968-10-21
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Granted: 1969-10-28
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Expires: 1988-10-21
Abstract
No abstract record available.
Inventors
- 👤 Alwin B Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:58
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F24; F24F; F24F5/00; F24F5/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2844638A
Cited
FR1163301A
Cited
US2993080A
Cited
US3090206A
Cited
FR1301736A
Cited
FR1323569A
Cited
US3137142A
Cited
US3138934A
Cited
US3248889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |