US3766149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diallyl phthalate ethylene precopolymer and process for preparation thereof
Assignee: Osaka Soda Co Ltd
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Filing: 1972-03-10
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Granted: 1973-10-16
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Expires: 1992-03-10
Abstract
Abstract A DIALLYL PHTHALATE-ETHYLENE PRECOPOLYMER COMPRISING 20 TO 95% BY WEIGHT OF A DIALYL PHTHALATE SELECTED FROM THE GROUP CONSISTING OF DIALLYL ORTHO-PHTHALATE, DIALLYL ISO-PHTHALATE, AND DIALLYL TEREPHTHALATE, AND 80 TO 5% BY WEIGHT OF ETHYLENE, THE AMOUNTS BEING BASED ON THE TOTAL WEIGHT OF THE MONOMERS, AND A PROCESS FOR THE PRODUCTION THEREOF.
Inventors
- 👤 M Oiwa
- 👤 A Matsumoto
- 👤 K Yokoyama
- 👤 K Matsumoto
- 👤 H Sasaki
- 👤 M Tojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:18
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C08F10/00
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |