US3071856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor blade and method of making same
Assignee: Individual
•
Filing: 1959-12-31
•
Granted: 1963-01-08
•
Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Irwin W Fischbein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:52
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/54; B26B21/58; B26B21/60; B05; B05D; B05D1/00; B05D1/60; B05D5/00; B05D5/08; B05D5/083; C; C09; C09D; C09D127/00; C09D127/02; C09D127/12; B05D2202/00; Y; Y10; Y10S; Y10S128/00; Y10S128/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A SAFETY RAZOR BLADE HAVING ON ITS CUTTING EDGE AN ADHERENT COATING COMPRISING A SOLID FLUOROCARBON POLYMER.
Claim 2
Dependent Claim
17 words
A SAFETY RAZOR BLADE HAVING ON ITS CUTTING EDGE AN ADHERENT COATING COMPRISING A SOLID FLUOROCARBON POLYMER.
References Cited (Backward Citations)
US2292417A
Cited
US2662065A
Cited
US2707157A
Cited
US2814296A
Cited
US2855669A
Cited
US2893900A
Cited
US2937976A
Cited
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 |