US2826803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serrating devices
Assignee: Individual
•
Filing: 1956-03-14
•
Granted: 1958-03-18
•
Expires: 1976-03-14
Abstract
No abstract record available.
Inventors
- 👤 Albert H Sterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/24; B23B51/00; B23B51/08; B23B51/10; B23B51/104; Y; Y10; Y10S; Y10S29/00; Y10S29/023; Y10S72/00; Y10S72/703; Y10T; Y10T407/00; Y10T407/10; Y10T408/00; Y10T408/34; Y10T408/352
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) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |