US3496138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adducts of polyglycol diamines and curable compositions comprising polyepoxides and said adducts
Assignee: Union Carbide Corp
•
Filing: 1966-08-01
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Granted: 1970-02-17
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Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Sellers
- 👤 Charles F Pitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/3167; Y10T428/31674
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB691543A
Cited
US3316185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |