US3472826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturated hydrocarbon prepolymer and reaction products thereof
Assignee: Union Carbide Corp
•
Filing: 1968-05-23
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Granted: 1969-10-14
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Expires: 1988-05-23
Abstract
No abstract record available.
Inventors
- 👤 James E Potts
- 👤 Arnold C Ashcraft Jr
- 👤 Edgar W Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
C; C08; C08F; C08F8/00; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3316202A
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US3305523A
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US3328362A
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US3377330A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |