US2475610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trioxepane and its polymers
Assignee: EIDP Inc
•
Filing: 1945-12-19
•
Granted: 1949-07-12
•
Expires: 1965-12-19
Abstract
No abstract record available.
Inventors
- 👤 William F Gresham
- 👤 Clarence D Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:57
CPC Classifications
C; C07; C07D; C07D323/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2045843A
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US2382874A
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US2031619A
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US2194994A
Cited
US2364438A
Cited
US2395265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |