Patent US3146254A successfully refreshed from Google Patents.
US3146254A
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US
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Tri-bisphenol-a ester of phosphoric acid
Assignee: Dow Chemical Co
•
Filing: 1962-06-15
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Granted: 1964-08-25
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Boozalis
- 👤 Richard B Mckeever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:08
CPC Classifications
C; C08; C08G; C08G64/00; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5075; C08G18/5081; C08G18/5084; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/30; C08G59/304; C08G59/32; C08G59/3254; C08G63/00; C08G63/68; C08G63/692; C08G63/6924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2058394A
Cited
US2931696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |