US2640834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dithiocarbamates and derivatives thereof
Assignee: Uniroyal Inc
•
Filing: 1947-04-18
•
Granted: 1953-06-02
•
Expires: 1967-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Lyndon B Tewksbury
- 👤 Sylvia S Heikkila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/46; C07D333/48
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2432256A
Cited
US2219006A
Cited
US2291798A
Cited
US2285813A
Cited
US2333468A
Cited
US2325194A
Cited
US2376338A
Cited
US2424921A
Cited
US2381392A
Cited
US2372161A
Cited
US2435404A
Cited
US2396789A
Cited
US2400029A
Cited
US2411219A
Cited
US2432255A
Cited
US2469838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |