US2486235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard smooth craze-resistant surface coating
Assignee: Wyeth Holdings LLC
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Filing: 1945-03-02
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Granted: 1949-10-25
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Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 William T Watt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D161/32; C08; C08L; C08L67/00; C08L67/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 0
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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) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |