Patent US1920809A successfully refreshed from Google Patents.
US1920809A
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US
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Method of producing box or container parts having alpha curved bottom
Assignee: FIRM UNIVERSELLE CIGARETTENMAS
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Filing: 1930-02-18
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Granted: 1933-08-01
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Expires: 1950-02-18
Abstract
No abstract record available.
Inventors
- 👤 Schmiedel Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:44
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/81; B31B2105/00; B31B2110/00; B31B2110/10; B31B2120/00; B31B2120/002; B31B2120/10; B31B2241/00; B31B2241/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |