Patent US2822290A successfully refreshed from Google Patents.
US2822290A
Expired / Lapsed
US
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Release coatings
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1955-04-05
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Granted: 1958-02-04
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Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 Charles S Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:43
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/40; C09J7/401; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A FLEXIBLE BACKING MEMBER HAVING AN EXPOSED LOW ADHESION RELEASE COATING BONDED TO AT LEAST ONE SURFACE THEREOF, SAID LOW ADHESION RELEASE COATING HAVING AS THE ACTIVE RELEASE AGENT THEREOF A COMPOUND CONTAINING IONIZAABLE HYDROGEN SELECTED FROM THE GROUP CONSISTING OF THE LONG CHAIN ALKYL AMINE AND AMIDE SALTS OF POLYBASIC INORGANIC ACIDS AND ACIDS ESTERS THEREOF.
Claim 2
Dependent Claim
57 words
A FLEXIBLE BACKING MEMBER HAVING AN EXPOSED LOW ADHESION RELEASE COATING BONDED TO AT LEAST ONE SURFACE THEREOF, SAID LOW ADHESION RELEASE COATING HAVING AS THE ACTIVE RELEASE AGENT THEREOF A COMPOUND CONTAINING IONIZAABLE HYDROGEN SELECTED FROM THE GROUP CONSISTING OF THE LONG CHAIN ALKYL AMINE AND AMIDE SALTS OF POLYBASIC INORGANIC ACIDS AND ACIDS ESTERS THEREOF.
References Cited (Backward Citations)
US2358831A
Cited
US2450083A
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US2458166A
Cited
US2532011A
Cited
US2646371A
Cited
US2607711A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |