Patent US2757728A successfully refreshed from Google Patents.
US2757728A
Expired / Lapsed
US
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Cutting by moving roller horizontally over die which is free for vertical movement
Assignee: ROMM
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Filing: 1954-09-23
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Granted: 1956-08-07
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Expires: 1974-09-23
Abstract
No abstract record available.
Inventors
- 👤 Lisi John F De
- 👤 Romm Cy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:36
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/40; B26F1/42; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/788; Y10T83/793; Y10T83/869; Y10T83/8752
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) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |