Patent US518927A successfully refreshed from Google Patents.
Patent US2584264A successfully refreshed from Google Patents.
US2584264A
Expired / Lapsed
US
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Process for curing coatings of polysulfide polymers
Assignee: ATK Launch Systems LLC
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Filing: 1945-06-20
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Granted: 1952-02-05
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Expires: 1965-06-20
Abstract
No abstract record available.
Inventors
- 👤 William S Foulks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:09
CPC Classifications
C; C09; C09D; C09D181/00; C09D181/04; B; B05; B05D; B05D3/00; B05D3/04; B05D3/0433; B05D3/0453; B05D3/046; B05D3/10; B05D3/107; B05D3/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
PROCESS FOR PROVIDING THE SURFACE OF A BODY WITH A PROTECTIVE COATING WHICH COMPRISES COATING SAID SURFACE WITH A SUBSTANTIALLY ANHYDROUS LIQUID COATING MIXTURE COMPRISING A POLYALKYLENE POLYSULFIDE CONTAINING AT LEAST TWO CARBON-ATTACHED -SH GROUPS, SAID POLYALKALENE POLYSULFIDE EXISTING AT 25* C. IN A LIQUID CONDITION AND BEING MIXED WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ZINC CHROMATE AND ZINC PEROXIDE AND HARDENING SAID COATING BY EXPOSING IT TO THE ACTION OF AN ALKALINE AGENT SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND THE VOLATILE AMINES.
Claim 2
Dependent Claim
89 words
PROCESS FOR PROVIDING THE SURFACE OF A BODY WITH A PROTECTIVE COATING WHICH COMPRISES COATING SAID SURFACE WITH A SUBSTANTIALLY ANHYDROUS LIQUID COATING MIXTURE COMPRISING A POLYALKYLENE POLYSULFIDE CONTAINING AT LEAST TWO CARBON-ATTACHED -SH GROUPS, SAID POLYALKALENE POLYSULFIDE EXISTING AT 25* C. IN A LIQUID CONDITION AND BEING MIXED WITH AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF ZINC CHROMATE AND ZINC PEROXIDE AND HARDENING SAID COATING BY EXPOSING IT TO THE ACTION OF AN ALKALINE AGENT SELECTED FROM THE GROUP CONSISTING OF AMMONIA AND THE VOLATILE AMINES.
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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |