US3459591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating polyolefinic films to make them heat-sealable and gas and water-vapor impermeable
Assignee: Daicel Corp
•
Filing: 1965-11-16
•
Granted: 1969-08-05
•
Expires: 1985-11-16
Abstract
No abstract record available.
Inventors
- 👤 Hikoichi Konishi
- 👤 Yuichi Harada
- 👤 Tamotsu Sunahara
- 👤 Yasuhiro Sakaguchi
- 👤 Tetsuo Ishihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:20
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C09D131/00; C09D131/02; C09D131/04; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/32; C08L23/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3291862A
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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 |