US2669752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding process
Assignee: Plax Corp
•
Filing: 1949-08-02
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Granted: 1954-02-23
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Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 William S Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:50
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B22C9/061; B29; B29C; B29C33/00; B29C33/42; B29C33/424; B29C37/00; B29C37/0053; B29C49/00; B29C49/42; B29C49/48; B29C49/52; B29C49/62; C; C23; C23F; C23F1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |