Patent US2993073A successfully refreshed from Google Patents.
US2993073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of p-halophenol
Assignee: Dow Chemical Co
•
Filing: 1958-09-08
•
Granted: 1961-07-18
•
Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 George G Roller
- 👤 Earl D Holly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:44
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/54; C07C49/00; C07C49/76; C07C49/82; C07C49/83; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
ORGANIC COMPOUNDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
6 words
ORGANIC COMPOUNDS HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2773903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |