US3456346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circle cutter and protective cover
Assignee: Crain Cutter Co Inc
•
Filing: 1966-10-20
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Granted: 1969-07-22
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Expires: 1986-10-20
Abstract
No abstract record available.
Inventors
- 👤 John M Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:35
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/3846; B26B; B26B27/00; B26B29/00; B26B29/06; B26B3/00; B26B3/08; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/56; Y10T408/5605
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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |