Patent NL7007249A successfully refreshed from Google Patents.
US3567740A
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Cyclopropanecarboxylic acid esters
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1967-08-21
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Granted: 1971-03-02
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Expires: 1987-08-21
Abstract
Abstract NEW CYCLOPROPANECARBOXYLATES ARE PREPARED BY REACTING CYCLOPROPANECARBOXYLIC ACID OR ACID HALIDE OR ANHYDRIDE THEREOF WITH A PRIMARY ALCOHOL.
Inventors
- 👤 Masanao Matsui
- 👤 Toshio Mizutani
- 👤 Nobushige Itaya
- 👤 Kenzo Ueda
- 👤 Shigeyoshi Kitamura
- 👤 Akira Fujinami
- 👤 Keimei Fujimoto
- 👤 Yositosi Okuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:22
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42; C07D307/77; C07D307/78; C07D307/79; C07D307/80; C07D307/87; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16
Claims Analysis
Total Claims: 0
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |