US3409461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of an encapsulated isocyanate
Assignee: Kalle GmbH and Co KG
•
Filing: 1963-11-22
•
Granted: 1968-11-05
•
Expires: 1983-11-22
Abstract
No abstract record available.
Inventors
- 👤 Mehlo Walther
- 👤 Titzmann Rudolf
- 👤 Zinsmeister Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/12; B01J13/125; C; C07; C07C; C07C263/00; C07C263/18; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/703; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7678
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2450503A
Cited
US2702773A
Cited
US2684305A
Cited
US2929737A
Cited
US3190850A
Cited
US3016308A
Cited
US3138478A
Cited
US2987496A
Cited
US3198647A
Cited
US3179637A
Cited
US3161602A
Cited
US3202533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |