US2728719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reconditioning ferrotyping surfaces
Assignee: Eastman Kodak Co
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Filing: 1951-11-30
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Granted: 1955-12-27
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 William M Tucker
- 👤 Frank O Beuckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:25
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE METHOD OF RECONDITIONING A CHROMIUM PLATED FERROTYPING SURFACE WHICH COMPRISES CLEANING THE SURFACE BY HAND RUBBING WITH AN AQUEOUS SLURRY OF FINELY DIVIDED AMORPHOUS ALUMINUM OXIDE UNTIL THE SURFACE FILM IS REMOVED, REMOVING THE SLURRY FROM THE SURFACE, AND APPLYING A COATING OF A FATTY ACID THERETO.
Claim 2
Independent Claim
48 words
THE METHOD OF RECONDITIONING A CHROMIUM PLATED FERROTYPING SURFACE WHICH COMPRISES CLEANING THE SURFACE BY HAND RUBBING WITH AN AQUEOUS SLURRY OF FINELY DIVIDED AMORPHOUS ALUMINUM OXIDE UNTIL THE SURFACE FILM IS REMOVED, REMOVING THE SLURRY FROM THE SURFACE, AND APPLYING A COATING OF A FATTY ACID THERETO.
References Cited (Backward Citations)
US2678908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |