Patent FR1258408A successfully refreshed from Google Patents.
US3274686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated razor blade for injector razor
Assignee: Eversharp Inc
•
Filing: 1965-03-02
•
Granted: 1966-09-27
•
Expires: 1985-03-02
Abstract
No abstract record available.
Inventors
- 👤 Dawidowicz Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:13
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A LAMINATED RAZOR BLADE FOR USE IN AN INJECTOR RAZOR COMPRISING A THIN FLAT METAL RAZOR BLADE OF RESILIENTLY FLEXIBLE MATERIAL HAVING A THICKNESS OF NO GREATER THAN ABOUT .005 INCH, A CUTTING EDGE FORMED ALONG AT LEAST ONE ELONGATED EDGE OF SAID BLADE, A THIN FLAT REINFORCING STRIP HAVING A THICKNESS FROM ABOUT .003 TO ABOUT .008 INCH ATTACHED TO AT LEAST ONE OF THE FLAT SURFACES OF THE BLADE WITH THEIR RESPECTIVE BROAD FACES IN A FACE-TO-FACE ADHESIVE BOND TO DEFINE A COMPOSITE BLADE HAVING A COMBINED FLAT AND UNIFORM THICKNESS WITH THE END EDGE OF THE BLADE AND REINFORCING STRIP DEFINING WITH THEIR COMBINED THICKNESS AN EDGE SURFACE AREA SUFFICIENT FOR ABUTTING CONTACT WITH A CORRESPONDING EDGE SURFACE AREA ON THE EDGE OF A SIMILAR BLADE, ONE SIDE EDGE OF THE REINFORCING STRIP EXTENDING PARALLEL TO BUT SPACED FROM THE SIDE EDGE, WHEREBY THE CUTTING EDGE EXTENDS FROM THE SIDE EDGE OF THE REINFORCING STRIP AN EXTENT SUFFICIENT TO EXTEND THE CUTTING EDGE OUT OF THE HEAD OF THE RAZOR IN SAFETY CUTTING POSITION RELATIVE TO THE SAFETY GUARD OF AN INJECTOR RAZOR.
Claim 2
Dependent Claim
186 words
A LAMINATED RAZOR BLADE FOR USE IN AN INJECTOR RAZOR COMPRISING A THIN FLAT METAL RAZOR BLADE OF RESILIENTLY FLEXIBLE MATERIAL HAVING A THICKNESS OF NO GREATER THAN ABOUT .005 INCH, A CUTTING EDGE FORMED ALONG AT LEAST ONE ELONGATED EDGE OF SAID BLADE, A THIN FLAT REINFORCING STRIP HAVING A THICKNESS FROM ABOUT .003 TO ABOUT .008 INCH ATTACHED TO AT LEAST ONE OF THE FLAT SURFACES OF THE BLADE WITH THEIR RESPECTIVE BROAD FACES IN A FACE-TO-FACE ADHESIVE BOND TO DEFINE A COMPOSITE BLADE HAVING A COMBINED FLAT AND UNIFORM THICKNESS WITH THE END EDGE OF THE BLADE AND REINFORCING STRIP DEFINING WITH THEIR COMBINED THICKNESS AN EDGE SURFACE AREA SUFFICIENT FOR ABUTTING CONTACT WITH A CORRESPONDING EDGE SURFACE AREA ON THE EDGE OF A SIMILAR BLADE, ONE SIDE EDGE OF THE REINFORCING STRIP EXTENDING PARALLEL TO BUT SPACED FROM THE SIDE EDGE, WHEREBY THE CUTTING EDGE EXTENDS FROM THE SIDE EDGE OF THE REINFORCING STRIP AN EXTENT SUFFICIENT TO EXTEND THE CUTTING EDGE OUT OF THE HEAD OF THE RAZOR IN SAFETY CUTTING POSITION RELATIVE TO THE SAFETY GUARD OF AN INJECTOR RAZOR.
References Cited (Backward Citations)
BE498465A
Cited
US858701A
Cited
US794798A
Cited
US929059A
Cited
US1458192A
Cited
US1734554A
Cited
US1916416A
Cited
US2335472A
Cited
US2983045A
Cited
US2937976A
Cited
US3111756A
Cited
US3128551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |