US2831017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorohydroxybenzophenone esters of alpha, alpha-dichloropropionic acid
Assignee: Dow Chemical Co
•
Filing: 1957-01-03
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Granted: 1958-04-15
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Expires: 1977-01-03
Abstract
No abstract record available.
Inventors
- 👤 Herman O Senkbeil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:15
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/62; C07C69/63
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A CHLOROHYDROXYBENZOPHENONE ESTER OF A,A-DICHLOROPROPIONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
9 words
A CHLOROHYDROXYBENZOPHENONE ESTER OF A,A-DICHLOROPROPIONIC ACID HAVING THE FORMULA
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |