US3530091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light and heat stabilized synthetic polymers
Assignee: Asahi Kasei Corp
•
Filing: 1967-10-31
•
Granted: 1970-09-22
•
Expires: 1987-10-31
Abstract
No abstract record available.
Inventors
- 👤 Atsushi Kitaoka
- 👤 Shinichi Ishida
- 👤 Kunio Sato
- 👤 Isamu Suzuki
- 👤 Jukichi Ohmura
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
- 👤 Saburo Akagi
- 👤 Tomoyuki Kurumada
- 👤 Ichiro Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
C; C07; C07C; C07C323/00; C08; C08K; C08K5/00; C08K5/0008; C08K5/005; C08K5/04; C08K5/10; C08K5/36; C08K5/37; C08K5/375
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |