US3021559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for the manufacture of hollow plastic articles
Assignee: E Shipton & Co Ltd
•
Filing: 1959-07-27
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Granted: 1962-02-20
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Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Strong Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:17
CPC Classifications
B; B29; B29C; B29C69/00; B29C69/02; B29C49/00; B29C49/02; B29C49/04; B29C49/42; B29C49/58; B29C2049/5862; B29C2049/5865; B29C2049/5886; B29C49/4273; B29C49/428; B29C49/42802; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29L; B29L2031/00; B29L2031/54; Y; Y10; Y10S; Y10S425/00; Y10S425/806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2750625A
Cited
US2890483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |