US3440245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glutarimidomethyl and beta-methylglutarimidomethyl esters of chrysanthemum carboxylic acids
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1964-12-11
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Granted: 1969-04-22
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Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Takeaki Kato
- 👤 Kenzo Ueda
- 👤 Sadao Horie
- 👤 Toshio Mizutani
- 👤 Keimei Fujimoto
- 👤 Yositosi Okuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:03
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/80; C07D211/84; C07D211/86; C07D211/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2717262A
Cited
US2863801A
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US3268396A
Cited
US3312706A
Cited
US3318766A
Cited
US3261838A
Cited
US3310463A
Cited
US3266984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |