US3130224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacturing method of alkylenedicyanamide
Assignee: Nippon Carbide Industries Co Inc
•
Filing: 1961-10-26
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Granted: 1964-04-21
•
Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Sugino Kuchiro
- 👤 Shirai Kozo
- 👤 Kitawaki Rokuro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:31
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065; C08G73/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A PROCESS OF PRODUCING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS OF PRODUCING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2194076A
Cited
US2349851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |