Patent US3512240A successfully refreshed from Google Patents.
US3512240A
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US
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Core assembly tool
Assignee: New England Pressed Steel Co
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Filing: 1967-06-16
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Granted: 1970-05-19
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Expires: 1987-06-16
Abstract
No abstract record available.
Inventors
- 👤 Walter Bartlett Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:24
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/50; B21; B21D; B21D49/00; B65H75/02; B65H75/18; B65H75/185; B65H75/187; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49936; Y10T29/49938; Y10T29/4994; Y10T29/51; Y10T29/5147; Y10T29/5148; Y10T29/53; Y10T29/53652; Y10T29/53709; Y10T29/53717; Y10T29/53722
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |