Patent US2447772A successfully refreshed from Google Patents.
US2447772A
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Aqueous dispersions of butadiene polymers and treatment of wool therewith
Assignee: Montclair Research Corp
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Filing: 1945-07-05
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Granted: 1948-08-24
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Expires: 1965-07-05
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
- 👤 Charles W Pfeifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:44
CPC Classifications
C; C08; C08J; C08J3/00; D; D06; D06M; D06M15/00; D06M15/693; C08J2309/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31754
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |