Patent US3831484A successfully refreshed from Google Patents.
US3831484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lobed rotary cutting blade
Assignee: Individual
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Filing: 1971-12-13
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Granted: 1974-08-27
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Expires: 1991-12-13
Abstract
Abstract A MULTI-LOBED CUTTING BLADE HAVING A PLANE MEMBER ADAPTED FOR MOUNTING TO A ROTARY DRIVE SHAFT AT RIGHT ANGLES TO THE PLANE MEMBER. THE PLANE MEMBER INCLUDES THREE OR MORE LOBES SACED APART RELATIVE TO ONEANOTHER AND A PLURALITY OF ABBREVIATED SECTORS SPACED APART RELATIVE TO ONE ANOTHER WITH AN ABBREVIATED SECTOR INTERMEDIATE TWO LOBES SUCH THAT THE OUTER PERIPHERAL EDGE OF EACH LOBE EXTENDS TO THE OUTER PERIPHERAL EDGE OF AN ABBREVIATED SECTOR. EACH OF SAID LOBES AND ABBREVIATED SECTORS CARRIES A CUTTING EDGE SURFACE ABOUT ITS'' OUTER PERIPHERY.
Inventors
- 👤 D Gibb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:24
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/06; B23; B23D; B23D61/00; B23D61/02; B23D61/025; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9372; Y10T83/9403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |