Patent US3953477A successfully refreshed from Google Patents.
US3953477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-tetrahydrofurfuryl-3,5-dimethylbenzamide
Assignee: Zeneca Inc
•
Filing: 1974-12-24
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Granted: 1976-04-27
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Expires: 1994-12-24
Abstract
Abstract This application is directed to novel compounds useful as insect repellents. The compounds of this invention have the following generic formula:
Inventors
- 👤 Don R. Baker
- 👤 Francis H. Walker
- 👤 Peter E. Letchworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/20; C07D307/00; C07D307/02; C07D307/04; C07D307/10; C07D307/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
The compound ##SPC3##
Claim 2
Dependent Claim
3 words
The compound ##SPC3##
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |