US3447409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper cutter
Assignee: CLARENCE T LEWIS
•
Filing: 1967-01-23
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Granted: 1969-06-03
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Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence T Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:05
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/20; B26D1/205; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/869; Y10T83/8776; Y10T83/8778; Y10T83/8821; Y10T83/8822; Y10T83/889; Y10T83/896
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |