Patent US3224094A successfully refreshed from Google Patents.
US3224094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethylene coated blades and process for their production
Assignee: Philip Morris USA Inc
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Filing: 1962-10-04
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Granted: 1965-12-21
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Esemplare Pascal Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:37
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; B26; B26B; B26B21/00; B26B21/54; B26B21/58; B26B21/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A RAZOR BLADE HAVING ON ITS CUTTING EGE AN ADHERENT COATING OF A POLYETHYLENE RESIN IN WHICH PARTICLES OF A POLYTETRAFLUOROETHYLENE RESIN ARE SUSPENDED, THE RATIO OF POLYETHYLENE TO POLYTETRAFLUOROETHYLENE RESINS IN THE COATING BEING BETWEN ABOUT 0.4:1 AND 1:1.
Claim 2
Dependent Claim
40 words
A RAZOR BLADE HAVING ON ITS CUTTING EGE AN ADHERENT COATING OF A POLYETHYLENE RESIN IN WHICH PARTICLES OF A POLYTETRAFLUOROETHYLENE RESIN ARE SUSPENDED, THE RATIO OF POLYETHYLENE TO POLYTETRAFLUOROETHYLENE RESINS IN THE COATING BEING BETWEN ABOUT 0.4:1 AND 1:1.
References Cited (Backward Citations)
BE605577A
Cited
US2562117A
Cited
US2681324A
Cited
US2951047A
Cited
US3071856A
Cited
US3071858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |