US2521366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticidal and synergistic products
Assignee: Rex Res Corp
•
Filing: 1949-04-22
•
Granted: 1950-09-05
•
Expires: 1969-04-22
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Hedenburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:34
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/50; C07D317/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
THE NEW ORGANIC CHEMICAL PRODUCT HAVING THE STRUCTURAL FORMULA: IN WHICH R IS AN ALKYL RADICAL HAVING FROM ONE TO FOUR CARBON ATOMS AND N IS AN INTERGER FROM ONE TO TWO.
References Cited (Backward Citations)
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US2456316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |