US3449353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'-diglycidyl hydantoins
Assignee: BASF Schweiz AG
•
Filing: 1967-06-02
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Granted: 1969-06-10
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Expires: 1987-06-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel Porret
- 👤 Rudolf Aenishaenslin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:54
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/10; C08G59/18; C08G59/20; C08G59/22; C08G59/26; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/55; Y; Y10; Y10S; Y10S260/00; Y10S260/34; Y10S8/00; Y10S8/916; Y10S8/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3391097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |