US3399427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making a hollow elongated plastic article
Assignee: Union Carbide Corp
•
Filing: 1966-07-22
•
Granted: 1968-09-03
•
Expires: 1986-07-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry J Harp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/0015; B29C49/0021; B29C48/00; B29C48/001; B29C48/0018; B29C48/0022; B29C48/03; B29C48/09; B29C48/10; Y; Y10; Y10S; Y10S425/00; Y10S425/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3243850A
Cited
US3298064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |