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Patent US2153013A successfully refreshed from Google Patents.
US2153013A
Expired / Lapsed
US
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Rotary knife
Assignee: S&S Corrugated Paper Machinery Co Inc
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Filing: 1935-08-16
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Granted: 1939-04-04
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Expires: 1955-08-16
Abstract
No abstract record available.
Inventors
- 👤 Gustave A Ungar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:24
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/0006; B26D1/56; B26D1/62; B26D1/626; B26D2001/0053; B26D2001/0066; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4824
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) | 1942-04-03 | 1942-10-03 | 1943-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-03 | 1946-10-03 | 1947-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-03 | 1950-10-03 | 1951-04-04 | $7700.00 | Window Closed / Lapsed |