US2489943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersing agents and method of producing same
Assignee: Uniroyal Inc
•
Filing: 1947-09-10
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Granted: 1949-11-29
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Expires: 1967-09-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Wilson
- 👤 John A Davison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:48
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/51; C; C08; C08F; C08F28/00; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/91; C08G63/914; C08G63/918; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2311; Y10T442/2336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2028091A
Cited
US2376014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |