US3847994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2,2-dimethyl-5-(aryloxy)-valeraldehydes
Assignee: Parke Davis and Co LLC
•
Filing: 1972-08-25
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Granted: 1974-11-12
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Expires: 1992-08-25
Abstract
Abstract WHERE ONE OF R2 IS HYDROGEN; AND THE OTHER OF R2 AND R3 IS METHYL. 1-(H-CO-C(-CH3)2-(CH2)3-O-),2-R2,3-R3,5-(H3C-)-BENZENE 1. A COMPOUND OF THE FORMULA
Inventors
- 👤 P Creger
- 👤 W Neuklis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:44
CPC Classifications
C; C07; C07C; C07C47/00; C07C47/20; C07C47/277; C07C45/00; C07C45/51; C07C45/516; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |