US3492386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extending process and device for tubular films of thermoplastic synthetic resin
Assignee: Okura Industrial Co Ltd
•
Filing: 1967-06-06
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Granted: 1970-01-27
•
Expires: 1987-06-06
Abstract
No abstract record available.
Inventors
- 👤 Tsuneo Ohmasa
- 👤 Kazuo Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:30
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2910961A
Cited
US1612509A
Cited
US2047554A
Cited
US2716777A
Cited
US2955321A
Cited
US3008186A
Cited
US3068516A
Cited
US3337665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |