Patent US2339443A successfully refreshed from Google Patents.
US2339443A
Expired / Lapsed
US
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Injection molding machine
Assignee: Armstrong World Industries Inc
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Filing: 1941-03-08
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Granted: 1944-01-18
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Expires: 1961-03-08
Abstract
No abstract record available.
Inventors
- 👤 Gardiner C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/2618; B29C45/262; Y; Y10; Y10S; Y10S425/00; Y10S425/058
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) | 1947-01-17 | 1947-07-19 | 1948-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-17 | 1951-07-19 | 1952-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-17 | 1955-07-19 | 1956-01-18 | $7700.00 | Window Closed / Lapsed |