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US2848458A
Expired / Lapsed
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5-oxo-1, 3-dithianes
Assignee: EIDP Inc
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Filing: 1954-10-20
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Granted: 1958-08-19
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward G Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:29
CPC Classifications
C; C07; C07D; C07D339/00; C07D339/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
15 words
A 5-OXO-1,3-DITHIANE HAVING ATTACHED TO AT LEAST ONE OF THE 4- AND 6-CARBONS A SUBSTITUENT,
References Cited (Backward Citations)
US2790811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |