US2461918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamine resinous composition and an ink made therefrom
Assignee: STWB Inc
•
Filing: 1945-08-14
•
Granted: 1949-02-15
•
Expires: 1965-08-14
Abstract
No abstract record available.
Inventors
- 👤 Petke Frederick Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:56
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; Y; Y10; Y10S; Y10S260/00; Y10S260/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371212A
Cited
US2309088A
Cited
US2111802A
Cited
US2312732A
Cited
US2304369A
Cited
US2356025A
Cited
US2387049A
Cited
US2382838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |