Patent US1160233A successfully refreshed from Google Patents.
US2548718A
Expired / Lapsed
US
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Stripping agent for polysulfide elastomer coatings
Assignee: Lockheed Martin Corp
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Filing: 1947-02-12
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Granted: 1951-04-10
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Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Melvin F George
- 👤 Eugene V Kleber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:50
CPC Classifications
C; C09; C09D; C09D9/00; C09D9/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A STRIPPING AGENT FOR POLYSULFIDE ELASTOMER COATINGS COMPRISING ON AN APPROXIMATE WEIGHT BASIS 50% TO 99% OF A SWELLING AGENT FOR CURED POLYSULFIDE POLYMERS CHOSEN FROM THE GROUP CONSISTING OF CYCLOPENTANONE AND CYCLOHEXANONE AND FROM 1% TO 20% DIBUTYL AMMONIUM DIBUTYL DITHIOCARBAMATE, AND FROM 1% TO 40% MERCAPTO ETHANOL.
References Cited (Backward Citations)
US2126818A
Cited
US2206643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |