US3534443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molding apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1968-02-28
•
Granted: 1970-10-20
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Expires: 1988-02-28
Abstract
No abstract record available.
Inventors
- 👤 Alvin S Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2366475A
Cited
US3289252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |