US1915072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of viscose rayon
Assignee: Brown Co
•
Filing: 1928-12-27
•
Granted: 1933-06-20
•
Expires: 1948-12-27
Abstract
No abstract record available.
Inventors
- 👤 George A Richter
- 👤 Jr Philip C Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/32; D06M11/34; D06M11/07; D06M11/11; D06M11/24; D06M11/26; D06M11/28; D06M11/36; D06M11/38; D06M11/47; D06M11/51; D06M11/55; D06M11/56; D06M11/58; D06M11/64; D06M11/65; D06M11/68; D06M11/70; D06M11/71; D06M11/80; D06M11/82
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) | 1936-06-19 | 1936-12-19 | 1937-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-06-19 | 1940-12-19 | 1941-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-06-19 | 1944-12-19 | 1945-06-20 | $7700.00 | Window Closed / Lapsed |