US2400720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of plastic surfaces
Assignee: Distillers Co Yeast Ltd
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Filing: 1943-07-19
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Granted: 1946-05-21
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Expires: 1963-07-19
Abstract
No abstract record available.
Inventors
- 👤 Staudinger Hanns Peter
- 👤 Hutchinson Henry Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:26
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/12; C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/22; C23C18/24; C08J2300/00; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10T; Y10T428/00; Y10T428/31; Y10T428/315; Y10T428/31504; Y10T428/31551; Y10T428/31627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-05-20 | 1949-11-19 | 1950-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-20 | 1953-11-19 | 1954-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-20 | 1957-11-19 | 1958-05-21 | $7700.00 | Window Closed / Lapsed |