Patent US2516649A successfully refreshed from Google Patents.
US2516649A
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US
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Unsaturated organic peroxide and method of making same
Assignee: Shell Development Co
•
Filing: 1946-12-10
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Granted: 1950-07-25
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Expires: 1966-12-10
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Rust
- 👤 Frank H Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:29
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1811; C07; C07C; C07C409/00; C07C409/16; C08; C08F; C08F4/00; C08F4/28; C08F4/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN ORGANIC PEROXIDE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
AN ORGANIC PEROXIDE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US1793917A
Cited
US2381561A
Cited
US2379390A
Cited
US2403709A
Cited
US2409996A
Cited
US2400041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |