Patent US3515730A successfully refreshed from Google Patents.
US3515730A
Expired / Lapsed
US
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Thenyl esters of cyclopropanecarboxylic acids
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1967-10-26
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Granted: 1970-06-02
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Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 Masanao Matsui
- 👤 Kenzo Ueda
- 👤 Toshio Mizutani
- 👤 Nobushige Itaya
- 👤 Shigeyoshi Kitamura
- 👤 Akira Fujinami
- 👤 Yositosi Okuno
- 👤 Keimei Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:22
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/50; C07D333/52; C07D333/54; C07D333/56; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C07D333/26; C07D333/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3047611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |