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Patent US3285938A successfully refreshed from Google Patents.
US3285938A
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US
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Tetraglycidyl ethers of tris (hydroxy-benzyl) phenol
Assignee: Union Carbide Corp
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Filing: 1961-10-10
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Granted: 1966-11-15
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Expires: 1981-10-10
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Sellers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:32
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A TETRAGLYCIDYL ETHER OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A TETRAGLYCIDYL ETHER OF 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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |