US3537516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact heat exchange component
Assignee: Olin Corp
•
Filing: 1968-07-02
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Granted: 1970-11-03
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Expires: 1988-07-02
Abstract
No abstract record available.
Inventors
- 👤 Charles O Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:57
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/02; F28D; F28D7/00; F28D7/02; F28D7/024; F28D7/08; F28D7/082; F28D7/085; F28F1/10; F28F1/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49377; Y10T29/49378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |