US2439202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of butadiene-acrylonitrile copolymer and styrene-acrylonitrile copolymer
Assignee: Uniroyal Inc
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Filing: 1946-10-19
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Granted: 1948-04-06
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Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Daly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L25/18; C08L9/00; C08L9/02; C08L2205/00; C08L2205/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2140048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |