US3257355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus containing polymers
Assignee: GE Chemicals Inc
•
Filing: 1961-06-01
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Granted: 1966-06-21
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Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Claude Thomas Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:15
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A PROCESS FOR PREPARING A PHOSPHORUS CONTAINING POLYMER COMPRISING REACTING A POLYCYCLIC PHOSPHORUS ESTER SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
20 words
A PROCESS FOR PREPARING A PHOSPHORUS CONTAINING POLYMER COMPRISING REACTING A POLYCYCLIC PHOSPHORUS ESTER SELECTED FROM THE GROUP CONSISTING OF
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |