Patent US3450682A successfully refreshed from Google Patents.
US3450682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of crystalline high polymers of olefins
Assignee: Mitsui Chemicals Inc
•
Filing: 1964-11-09
•
Granted: 1969-06-17
•
Expires: 1984-11-09
Abstract
No abstract record available.
Inventors
- 👤 Juntaro Sasaki
- 👤 Tadaichi Tokuzumi
- 👤 Toshio Senoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:04
CPC Classifications
C; C08; C08F; C08F110/00; C08F110/04; C08F110/06; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/622; C08F10/00; C08F10/04; C08F10/06; C08F210/00; C08F210/16; C08F4/64; C08F4/659; C08F4/65912; C08F4/6592; C08F4/65922; C08F4/65927; C08F2500/00; C08F2500/03; C08F2500/12; C08F2500/15; C08F2500/17
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB785314A
Cited
US2939846A
Cited
US2904542A
Cited
GB837251A
Cited
US3075960A
Cited
US3131171A
Cited
US3035035A
Cited
US3035036A
Cited
US3225022A
Cited
US3313791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |