US3538548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus for varying parison thickness
Assignee: Innopak Corp
•
Filing: 1967-05-19
•
Granted: 1970-11-10
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Tenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/325; B29C48/03; B29C48/09; B29C48/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3218672A
Cited
US3186032A
Cited
US3283363A
Cited
US3217360A
Cited
US3327350A
Cited
US3368241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |