US2834054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for extruding polychlorotrifluoroethylene
Assignee: Union Carbide Corp
•
Filing: 1953-05-27
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Granted: 1958-05-13
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Expires: 1973-05-27
Abstract
No abstract record available.
Inventors
- 👤 Bruce H Maddock
- 👤 Jr William M Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:37
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/022; B29C48/03; B29C48/09; B29C48/001; B29C48/0022; B29C48/10; B29C48/15; B29C48/151; B29K; B29K2027/00; B29K2027/12; B29K2027/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |