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US2844553A
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Polyhydric phenol-aldehyde-epihalo-hydrin resins
Assignee: Sherwin Williams Co
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Filing: 1953-04-24
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Granted: 1958-07-22
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Expires: 1973-04-24
Abstract
No abstract record available.
Inventors
- 👤 Robert S Taylor
- 👤 Lynwood N Whitehill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:22
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A HYDROPHOBIC RESINOUS MATERIAL FORMED FROM (A) A DIHYDRIC POLYNUCLEAR PHENOL CONTAINING AT LEAST ONE ALDEHYDE REACTIVE POSITION AND HAVING THE FORMULA:
Claim 2
Dependent Claim
22 words
A HYDROPHOBIC RESINOUS MATERIAL FORMED FROM (A) A DIHYDRIC POLYNUCLEAR PHENOL CONTAINING AT LEAST ONE ALDEHYDE REACTIVE POSITION AND HAVING THE 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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |