US2273436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of halogen containing film forming material
Assignee: IG Farbenindustrie AG
•
Filing: 1940-05-04
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Granted: 1942-02-17
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Expires: 1960-05-04
Abstract
No abstract record available.
Inventors
- 👤 Desamari Kurt
- 👤 Hebermehl Reinhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:13
CPC Classifications
C; C09; C09D; C09D127/00; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/36; C08K5/37; C08K5/375; Y; Y10; Y10S; Y10S524/00; Y10S524/925
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) | 1945-02-16 | 1945-08-18 | 1946-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-16 | 1949-08-18 | 1950-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-16 | 1953-08-18 | 1954-02-17 | $7700.00 | Window Closed / Lapsed |