Patent US2571328A successfully refreshed from Google Patents.
US2571328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning metal articles of adherent rubber and the like
Assignee: Ohio Rubber Co
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Filing: 1947-12-22
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Granted: 1951-10-16
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Expires: 1967-12-22
Abstract
No abstract record available.
Inventors
- 👤 John C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:51
CPC Classifications
C; C23; C23G; C23G5/00; Y; Y10; Y10T; Y10T29/00; Y10T29/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF CLEANING METAL ARTICLES OF ADHERENT RUBBER AND RELATED CARBONACEOUS DEPOSITS WHICH COMPRISES RENDERING SUCH ADHERENT RUBBER AND DEPOSITS CRUMBLY BY SUBJECTING THE SAME TO THE ACTION OF A FLUORINATING AGENT, AND THEREAFTER MECHANICALLY ABRADING SUCH DETERIORATED RUBBER AND DEPOSITS TO REMOVE THEM FROM THE METAL SURFACE.
Claim 2
Independent Claim
49 words
THE METHOD OF CLEANING METAL ARTICLES OF ADHERENT RUBBER AND RELATED CARBONACEOUS DEPOSITS WHICH COMPRISES RENDERING SUCH ADHERENT RUBBER AND DEPOSITS CRUMBLY BY SUBJECTING THE SAME TO THE ACTION OF A FLUORINATING AGENT, AND THEREAFTER MECHANICALLY ABRADING SUCH DETERIORATED RUBBER AND DEPOSITS TO REMOVE THEM FROM THE METAL SURFACE.
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) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |