US2856162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger
Assignee: Olin Corp
•
Filing: 1956-01-17
•
Granted: 1958-10-14
•
Expires: 1976-01-17
Abstract
No abstract record available.
Inventors
- 👤 Richard F Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:12
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/08; F28D1/00; F28D1/02; F28D1/0233; F28D1/024; F28D7/082; F28D7/085; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/307; Y10S165/308; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828538A
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US1893650A
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US2138333A
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US2119140A
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US2654529A
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US2646258A
Cited
US2759247A
Cited
US2697428A
Cited
US2662748A
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US2779173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |