US2013976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable perforating die
Assignee: Individual
•
Filing: 1934-09-25
•
Granted: 1935-09-10
•
Expires: 1954-09-25
Abstract
No abstract record available.
Inventors
- 👤 George F Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:47
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/26; B21D28/265; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/2163; Y10T83/2166; Y10T83/2209; Y10T83/2216; Y10T83/869; Y10T83/8727; Y10T83/8742; Y10T83/8743; Y10T83/8821; Y10T83/8825
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) | 1938-09-09 | 1939-03-11 | 1939-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-09-09 | 1943-03-11 | 1943-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-09-09 | 1947-03-11 | 1947-09-10 | $7700.00 | Window Closed / Lapsed |