US3426057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isocyanate compounds and process for preparing same
Assignee: Individual
•
Filing: 1966-06-23
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Granted: 1969-02-04
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Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Bernard Kanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:58
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0876; C07F7/0878; C07F7/0879; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/778; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/388; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/653; C08J2375/00; C08J2375/04; C08J2483/00
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |