Patent US2822577A successfully refreshed from Google Patents.
US2822577A
Expired / Lapsed
US
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Injection molding machine with weighfeeder and plunger position control
Assignee: Exact Weight Scale Co
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Filing: 1956-03-21
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Granted: 1958-02-11
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Expires: 1976-03-21
Abstract
No abstract record available.
Inventors
- 👤 Warren J Schieser
- 👤 John F Kelley
- 👤 Donald G Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:10
CPC Classifications
G; G01; G01G; G01G13/00; B; B29; B29C; B29C45/00; B29C45/17; B29C45/18; B29C45/1808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2760232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |