US2801989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycidyl polyether of a polyphenylol
Assignee: Union Carbide Corp
•
Filing: 1954-04-09
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Granted: 1957-08-06
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Expires: 1974-04-09
Abstract
No abstract record available.
Inventors
- 👤 Alford G Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:12
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218; C08G59/02; C08G59/04; C08G59/06; C08G59/063; C08G59/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A GLYCIDYL POLYETHER OF A POLYPHENYLOL HAVING 2X+1 PHENYLOL GROUPS AND
Claim 2
Dependent Claim
11 words
A GLYCIDYL POLYETHER OF A POLYPHENYLOL HAVING 2X+1 PHENYLOL GROUPS AND
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) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |