US2107068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforating machine
Assignee: W S DICKEY CLAY MANUFACTURING Co
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Filing: 1936-12-31
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Granted: 1938-02-01
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Expires: 1956-12-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Dauwalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:25
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/12; Y; Y10; Y10T; Y10T83/00; Y10T83/263; Y10T83/869; Y10T83/8745; Y10T83/8821; Y10T83/8828; Y10T83/8831
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) | 1941-01-31 | 1941-08-02 | 1942-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-31 | 1945-08-02 | 1946-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-31 | 1949-08-02 | 1950-02-01 | $7700.00 | Window Closed / Lapsed |