Patent US1162797A successfully refreshed from Google Patents.
US1162797A
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Process for converting flax-straw fiber into paper-pulp.
Assignee: NORTH DAKOTA STRAW PRODUCTS CO
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Filing: —
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Granted: 1915-12-07
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Expires: 1932-12-07
Abstract
No abstract record available.
Inventors
- 👤 John Henry Melchers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:07
CPC Classifications
D; D01; D01C; D01C1/00; D01C1/02
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) | 1918-12-06 | 1919-06-07 | 1919-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-12-06 | 1923-06-07 | 1923-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-12-06 | 1927-06-07 | 1927-12-07 | $7700.00 | Window Closed / Lapsed |