US2516186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-nitro-1, 1-bis (p-chlorophenyl) alkanes, and insecticidal compositions containing same
Assignee: Purdue Research Foundation
•
Filing: 1948-11-18
•
Granted: 1950-07-25
•
Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Henry B Hass
- 👤 Robert T Blickenstaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:47
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/07; C07C205/08; C07C205/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
THE COMPOUNDS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
6 words
THE COMPOUNDS OF THE GENERAL FORMULA:
Claim 3
Dependent Claim
17 words
AN INSECTICIDAL COMPOSITION COMPRISING FROM ABOUT .062 TO ABOUT 5.0% OF A COMPOUND OF THE GENERAL FORMULA:
Claim 4
Dependent Claim
17 words
AN INSECTICIDAL COMPOSITION COMPRISING FROM ABOUT .062 TO ABOUT 5.0% OF A COMPOUND OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2397802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |