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US2548982A
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Polyaryl polyparaffins
Assignee: Domtar Inc
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Filing: 1949-03-18
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Granted: 1951-04-17
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Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Kemp Woodrow Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:57
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/20; C07C15/24; C07C15/12; C07C15/16; C07C2/00; C07C2/86; C07C2/862; C07C2/867
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AS NEW CHEMICAL COMPOUNDS, THOSE HAVING THE GENERAL FORMULA;
Claim 2
Dependent Claim
9 words
AS NEW CHEMICAL COMPOUNDS, THOSE HAVING THE GENERAL FORMULA;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |