US1870864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of dissolving and dispersing nitrocellulose
Assignee: DISPERSIONS PROCESS Inc
•
Filing: 1929-02-26
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Granted: 1932-08-09
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Expires: 1949-02-26
Abstract
No abstract record available.
Inventors
- 👤 Pratt William Beach
- 👤 Ralph T Halstead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:13
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08J2301/00; C08J2301/08; C08J2301/16; C08J2301/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-08-09 | 1936-02-08 | 1936-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-09 | 1940-02-08 | 1940-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-09 | 1944-02-08 | 1944-08-09 | $7700.00 | Window Closed / Lapsed |