US2346194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet tearing device
Assignee: Individual
•
Filing: 1941-03-17
•
Granted: 1944-04-11
•
Expires: 1961-03-17
Abstract
No abstract record available.
Inventors
- 👤 Robert L Sjostrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
A; A41; A41H; A41H43/00; A41H43/005; Y; Y10; Y10T; Y10T83/00; Y10T83/081; Y10T83/099; Y10T83/202; Y10T83/2022; Y10T83/2031; Y10T83/444; Y10T83/4458; Y10T83/525; Y10T83/531; Y10T83/533; Y10T83/748; Y10T83/7487
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) | 1947-04-11 | 1947-10-11 | 1948-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-11 | 1951-10-11 | 1952-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-11 | 1955-10-11 | 1956-04-11 | $7700.00 | Window Closed / Lapsed |