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Patent US3466260A successfully refreshed from Google Patents.
US3466260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonates of 1,4-bis(p-hydroxycumyl) benzene
Assignee: Honeywell International Inc
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Filing: 1965-07-08
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Granted: 1969-09-09
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Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Logan C Bostian
- 👤 Thomas M Cawthon
- 👤 Bryce C Oxenrider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/04; C08G64/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA576639A
Cited
US2970131A
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US3021305A
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US3227681A
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US3275601A
Cited
FR1293289A
Cited
GB932811A
Cited
US3193530A
Cited
US3193529A
Cited
US3251805A
Cited
US3247164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |