US2260750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and machine for making hollow articles from plastics
Assignee: Plax Corp
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Filing: 1938-07-08
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Granted: 1941-10-28
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Expires: 1958-07-08
Abstract
No abstract record available.
Inventors
- 👤 William H Kopitke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:28
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C49/0411; B29C49/04114; B29C48/00; B29C48/001; B29C48/0017; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/30; B29C48/32; B29C48/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-10-27 | 1945-04-28 | 1945-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-27 | 1949-04-28 | 1949-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-27 | 1953-04-28 | 1953-10-28 | $7700.00 | Window Closed / Lapsed |