US2827944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller apparatus for opening and flattening tubular stock
Assignee: LOMBARD CORP
•
Filing: 1957-01-22
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Granted: 1958-03-25
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Mircea A Grossu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:47
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/02; B21C23/00; B21C23/02; B21C23/04; B21C23/06; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5184; Y10T29/5197
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US418459A
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US1423361A
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DE465161C
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GB103215A
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US2133874A
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FR835850A
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US2295953A
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US2458686A
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US2313702A
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US2692421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |