Patent US3362468A successfully refreshed from Google Patents.
US3362468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface condenser
Assignee: RTX Corp
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Filing: 1964-10-30
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Granted: 1968-01-09
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Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 John A Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:02
CPC Classifications
F; F28; F28B; F28B1/00; F28B1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
IN A SHELL AND TUBE CONDENSER HAVING AN EXTERNAL SHELL CONNECTED BETWEEN FIRST AND SECOND TUBE HEADERS TO DEFINE A CHAMBER FOR THE SHELL-SIDE FLUID, A PLURALITY OF TAPERED TUBES EXTENDING LONGITUDINALLY THROUGH SAID CHAMBER AND COMMUNICATING WITH EACH HEADER AND HAVING THE MAXIMUM DIAMETER ADJACENT THE INLET HEADER, MEANS TO MAINTAIN A STABLE VAPOR-LIQUID INTERFACE COMPRISING THE MINIMUM DIAMETER OF EACH OF SAID TUBES BEING LESS THAN THE CRITICAL DIAMETER FOR THE FLUID BEING CONDENSED, AND AN INLET AND OUTLET TO SAID CHAMBER FOR CIRCULATING THE SHELL-SIDE FLUID THERETHROUGH.
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US2032811A
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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) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |