US1629681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-making apparatus
Assignee: Great Northern Paper Inc
•
Filing: 1926-01-15
•
Granted: 1927-05-24
•
Expires: 1946-01-15
Abstract
No abstract record available.
Inventors
- 👤 Hervey G Cram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:48
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/0063; B; B65; B65H; B65H2301/00; B65H2301/50; B65H2301/52; B65H2301/522; B65H2301/52202; B65H2801/00; B65H2801/84
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) | 1930-05-23 | 1930-11-22 | 1931-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-23 | 1934-11-22 | 1935-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-23 | 1938-11-22 | 1939-05-24 | $7700.00 | Window Closed / Lapsed |