US3446780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercaptan containing polyurethane compositions,process and cured products thereof
Assignee: ATK Launch Systems LLC
•
Filing: 1965-08-31
•
Granted: 1969-05-27
•
Expires: 1985-08-31
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Bertozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3855; C08G18/3876; C08G18/08; C08G18/10; Y; Y10; Y10S; Y10S528/00; Y10S528/905; Y10S528/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2741800A
Cited
GB748697A
Cited
US2929794A
Cited
US2992210A
Cited
US3297649A
Cited
US3361720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |