US3415316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular units and use thereof in heat exchangers
Assignee: Olin Corp
•
Filing: 1967-04-11
•
Granted: 1968-12-10
•
Expires: 1987-04-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Burne
- 👤 Emery I Valyi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:39
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/1684; F28D7/0041; F28D7/10; F28D7/163; F28D7/1653; F28F; F28F13/00; F28F13/003; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/40; Y10S165/401; Y10S165/405; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1670127A
Cited
GB285151A
Cited
US2401767A
Cited
US2448315A
Cited
US3262190A
Cited
FR1313183A
Cited
US3306353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |