US2631669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix trimmer
Assignee: Individual
•
Filing: 1951-02-03
•
Granted: 1953-03-17
•
Expires: 1971-02-03
Abstract
No abstract record available.
Inventors
- 👤 Craig C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:37
CPC Classifications
B; B41; B41D; B41D5/00; Y; Y10; Y10S; Y10S101/00; Y10S101/36; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7493; Y10T83/7573; Y10T83/768; Y10T83/7684; Y10T83/7693; Y10T83/7755; Y10T83/7763; Y10T83/7788; Y10T83/828; Y10T83/839
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) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |