US2683931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife
Assignee: Individual
•
Filing: 1952-07-24
•
Granted: 1954-07-20
•
Expires: 1972-07-24
Abstract
No abstract record available.
Inventors
- 👤 Gordon L Fahlgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:05
CPC Classifications
B; B26; B26B; B26B27/00; Y; Y10; Y10S; Y10S30/00; Y10S30/06; Y10S7/00; Y10S7/901; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17418; Y10T279/17427; Y10T279/17487; Y10T279/17504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |