US2493711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Di-aryloxy-methanes
Assignee: Dow Chemical Co
•
Filing: 1948-09-02
•
Granted: 1950-01-03
•
Expires: 1968-09-02
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Britton
- 👤 Monroe Ezra
- 👤 Clare R Hand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/30; C07C43/315; A; A01; A01N; A01N31/00; A01N31/06; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A DI-(ARYLOXY)-METHANE HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
6 words
A DI-(ARYLOXY)-METHANE HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2330234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |