Patent US3271934A successfully refreshed from Google Patents.
US3271934A
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US
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Heat transfer apparatus having means to separate condensed liquid from the system fluid
Assignee: Carrier Corp
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Filing: 1962-06-11
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Granted: 1966-09-13
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 James R Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:59
CPC Classifications
F; F28; F28B; F28B9/00; F28B9/04; F28B9/06; F28B1/00; F28B1/02; F28F; F28F19/00; F28F9/00; F28F9/22; F28F9/26; F28D; F28D21/00; F28D2021/0019; F28D2021/0075
Claims Analysis
Total Claims: 0
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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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |