US1354640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated nitrocellulose powder and process of making the same
Assignee: EIDP Inc
•
Filing: 1920-02-20
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Granted: 1920-10-05
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Expires: 1940-02-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard G Woodbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:58
CPC Classifications
C; C06; C06B; C06B45/00; C06B45/18; C06B45/20; C06B45/22; C06B45/24; C06B45/26; C06B21/00; C06B21/0083
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) | 1923-10-05 | 1924-04-05 | 1924-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-10-05 | 1928-04-05 | 1928-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-10-05 | 1932-04-05 | 1932-10-05 | $7700.00 | Window Closed / Lapsed |