US2441945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymer compositions containing finely divided metal particles
Assignee: Jasco Inc
•
Filing: 1940-08-24
•
Granted: 1948-05-25
•
Expires: 1960-08-24
Abstract
No abstract record available.
Inventors
- 👤 Per K Frolich
- 👤 Irving E Lightbown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:26
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/08; Y; Y10; Y10S; Y10S152/00; Y10S152/02; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2377
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1950662A
Cited
US2078353A
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US2084784A
Cited
US2160204A
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US2162178A
Cited
US2197127A
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GB513521A
Cited
US2196579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |