US3385802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed polyester coatings containing coal as filler
Assignee: United States Steel Corp
•
Filing: 1964-07-30
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Granted: 1968-05-28
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Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 George E Trieschock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:54
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08K; C08K3/00; C08K3/02; C08K3/04; C08J2367/00; C08J2367/06; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/249986; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31786; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358A
Cited
US2370428A
Cited
US2624714A
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DE1054703B
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US2843556A
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US3075942A
Cited
US3227665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |