US1963058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating paper
Assignee: Specialty Papers Co
•
Filing: 1930-11-20
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Granted: 1934-06-12
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Expires: 1950-11-20
Abstract
No abstract record available.
Inventors
- 👤 Wilshire Van Hamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:05
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H5/00; D21H5/0005; D21H5/006; D21H5/0062; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808
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) | 1937-06-11 | 1937-12-11 | 1938-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-11 | 1941-12-11 | 1942-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-11 | 1945-12-11 | 1946-06-12 | $7700.00 | Window Closed / Lapsed |