US2819738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing surface coatings
Assignee: Nat Chemical & Manufacturing Co
•
Filing: 1951-05-19
•
Granted: 1958-01-14
•
Expires: 1971-05-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Marberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:51
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/80; Y; Y10; Y10S; Y10S366/00; Y10S366/605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2037989A
Cited
US2142505A
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US2206984A
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US2167437A
Cited
US2383230A
Cited
US2430995A
Cited
US2528530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |