Patent US3494957A successfully refreshed from Google Patents.
US3494957A
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US
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Polyol esters of alpha-aryloxyalkanoic acids
Assignee: Tanabe Pharma Corp
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Filing: 1966-01-05
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Granted: 1970-02-10
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Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Michio Nakanishi
- 👤 Tsuneto Kuriyama
- 👤 Takanori Oe
- 👤 Toshihiro Kobayakawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:08
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07C; C07C315/00; C07C315/04; C07C317/00; C07C317/44; C07C319/00; C07C319/14; C07C319/20; C07C323/00; C07C323/50; C07C323/51; C07C323/52; C07C69/00; C07C69/66; C07C69/67; C07C69/708; C07C69/712; C07C69/73; C07C69/734; C07C69/736; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |