Patent US2816898A successfully refreshed from Google Patents.
US2816898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aryl halogen substituted dioxanes and dioxins and processes
Assignee: Union Carbide Corp
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Filing: 1954-09-30
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Granted: 1957-12-17
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Lambrech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:23
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65131; C; C07; C07D; C07D319/00; C07D319/04; C07D319/06; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/156; C08K5/1575; C09; C09D; C09D9/00; C09D9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
THE METHOD OF PRODUCING A COMPOUND HAVING THE FORMULA:
Claim 2
Independent Claim
9 words
THE METHOD OF PRODUCING A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
BE511103A
Cited
CA489878A
Cited
US2296375A
Cited
FR876218A
Cited
US2414989A
Cited
US2445733A
Cited
AT174908B
Cited
DE870857C
Cited
US2756240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |