US2676357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic molding conversion attachment for reciprocating presses
Assignee: Individual
•
Filing: 1952-02-28
•
Granted: 1954-04-27
•
Expires: 1972-02-28
Abstract
No abstract record available.
Inventors
- 👤 James F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:47
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB442207A
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US2233558A
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US2308867A
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US2374468A
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US2443853A
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US2490566A
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US2501595A
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US2600958A
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US2577412A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |