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US2403758A
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Asymmetrical ditertiary peroxides
Assignee: Shell Development Co
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Filing: 1943-10-04
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Granted: 1946-07-09
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Expires: 1963-10-04
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Rust
- 👤 Frank H Dickey
- 👤 Edward R Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:16
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C07; C07C; C07C409/00; C07C409/16; C08F36/00; C08F36/02; C08F36/04; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1811; C10L1/20; C10L1/203; F; F02; F02B; F02B47/00; Y; Y10; Y10S; Y10S260/00; Y10S260/28
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) | 1949-07-08 | 1950-01-07 | 1950-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-08 | 1954-01-07 | 1954-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-08 | 1958-01-07 | 1958-07-09 | $7700.00 | Window Closed / Lapsed |