US3133533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular saw
Assignee: Individual
•
Filing: 1963-03-15
•
Granted: 1964-05-19
•
Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Milton G Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:17
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/12; B28D1/121
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A CIRCULAR SAW BLADE COMPRISING A DISC WITH PERIPHERAL NOTCHES ARRANGED AT A COMMON ANGLE TO RADII OF THE DISC, A TRANSVERSE FLANGE ON THE EDGE OF EACH NOTCH AND SUBSTANTIALLY COEXTENSIVE THEREWITH, A TRANSVERSE FLANGE ON EACH OF THE SECTIONS OF THE PERIPHERAL EDGES OF SAID DISC BETWEEN ADJACENT, SAID NOTCHES, A CORNER NOTCH IN THE UPPER CORNER OF THE LEADING END OF THE SECOND-MENTIONED FLANGE, AND A TOOL TIP OF ABRASIVE MATERIAL CARRIED BY SAID CORNER NOTCH.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |