US2996158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting blade lock
Assignee: Individual
•
Filing: 1958-01-23
•
Granted: 1961-08-15
•
Expires: 1978-01-23
Abstract
No abstract record available.
Inventors
- 👤 Walter J Greenleaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:30
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/16; B23C5/20; B23C5/22; B23C5/2265; B23C5/2269; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1934; Y10T407/1938; Y10T407/22; Y10T407/2272; Y10T407/2282; Y10T407/2284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2153858A
Cited
US2245446A
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US2395288A
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US2508437A
Cited
US2584449A
Cited
US2504192A
Cited
US2632536A
Cited
US2778092A
Cited
US2842233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |