US3459788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of bis-(beta-hydroxyethyl)-benzene dicarboxylate
Assignee: Nippon Soda Co Ltd
•
Filing: 1965-02-23
•
Granted: 1969-08-05
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Expires: 1985-02-23
Abstract
No abstract record available.
Inventors
- 👤 Kichiji Enoki
- 👤 Susumu Adachi
- 👤 Shigeo Sakata
- 👤 Mitsuo Kumaki
- 👤 Eiichi Ikari
- 👤 Hiroshi Takakura
- 👤 Nobuyasu Takahashi
- 👤 Komei Takashima
- 👤 Munemasa Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/76; C07C69/80; C07C69/82; C07C67/00; C07C67/24; C07C67/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2910490A
Cited
US3037049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |