US3071904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip sharpening method
Assignee: Bank of America Corp
•
Filing: 1959-06-22
•
Granted: 1963-01-08
•
Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Delafontaine Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:30
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/56; B24B3/36; B24B3/48; B24B3/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A METHOD OF SHARPENING THE EDGE OF A STRIP MATERIAL WHICH INCLUDES THE STEPS OF CONTINUOUSLY MOVING A STRIP AND DURING SAID MOVEMENT SHARPENING AN EDGE THEREOF, FORMING THE STRIP INTO A LOOP, PULLING THE STRIP INTERMITTENTLY FROM SAID LOOP, INSPECTING SUCCESSIVE STATIONARY PORTIONS OF THE SHARPENED STRIP, AND CONTROLLING SAID SHARPENING STEP IN ACCORDANCE WITH THE INFORMATION CONVEYED BY SAID INSPECTING STEP.
Claim 2
Independent Claim
63 words
A METHOD OF SHARPENING THE EDGE OF A STRIP MATERIAL WHICH INCLUDES THE STEPS OF CONTINUOUSLY MOVING A STRIP AND DURING SAID MOVEMENT SHARPENING AN EDGE THEREOF, FORMING THE STRIP INTO A LOOP, PULLING THE STRIP INTERMITTENTLY FROM SAID LOOP, INSPECTING SUCCESSIVE STATIONARY PORTIONS OF THE SHARPENED STRIP, AND CONTROLLING SAID SHARPENING STEP IN ACCORDANCE WITH THE INFORMATION CONVEYED BY SAID INSPECTING STEP.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |