Patent US2767169A successfully refreshed from Google Patents.
US2767169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylation of refined wood pulp
Assignee: Rayonier Inc
•
Filing: 1951-05-03
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Granted: 1956-10-16
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Expires: 1971-05-03
Abstract
No abstract record available.
Inventors
- 👤 Gray Kenneth Russell
- 👤 Holloway Judson Harry
- 👤 Thomas Berwyn Brainerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:24
CPC Classifications
C; C08; C08B; C08B1/00; C08B1/02; C08B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
AS A NEW ARTICLE OF MANUFACTURE, RELATIVELY DRY REFINED WOOD PULP IN SHEET FORM HAVING INCORPORATED THEREIN A GLYCOL ETHER COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
24 words
AS A NEW ARTICLE OF MANUFACTURE, RELATIVELY DRY REFINED WOOD PULP IN SHEET FORM HAVING INCORPORATED THEREIN A GLYCOL ETHER COMPOUND HAVING THE FORMULA
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US2064384A
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US2273039A
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US2362217A
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US2481693A
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US2686132A
Cited
US2623875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |