US3405200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin composition containing a copolymer of ethylene-acrylamide-ethylenically unsaturated compound
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1966-07-01
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Granted: 1968-10-08
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Expires: 1986-07-01
Abstract
No abstract record available.
Inventors
- 👤 Yasumura Tomohide
- 👤 Sameshima Yasuro
- 👤 Onodera Kosaku
- 👤 Oono Teruo
- 👤 Taniguchi Isoji
- 👤 Maemoto Kenichi
- 👤 Tatsukami Yoshiharu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:08
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA674099A
Cited
US2893970A
Cited
US3115478A
Cited
US3156743A
Cited
US3226455A
Cited
US3299185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |