US1977221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper manufacture
Assignee: Brown Co
•
Filing: 1932-11-05
•
Granted: 1934-10-16
•
Expires: 1952-11-05
Abstract
No abstract record available.
Inventors
- 👤 James A Yates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:20
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/06
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) | 1937-10-15 | 1938-04-16 | 1938-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-15 | 1942-04-16 | 1942-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-15 | 1946-04-16 | 1946-10-16 | $7700.00 | Window Closed / Lapsed |