US2475002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of cured polymers
Assignee: AT&T Inc
•
Filing: 1943-04-30
•
Granted: 1949-07-05
•
Expires: 1963-04-30
Abstract
No abstract record available.
Inventors
- 👤 Burnard S Biggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:13
CPC Classifications
C; C08; C08J; C08J7/00; C08J2367/00; C08J2367/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1890668A
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US1903961A
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US2071250A
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US2129450A
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GB500547A
Cited
US2255313A
Cited
US2260005A
Cited
US2252271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |