US3071556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate resin plasticized with the reaction product of isatoic anhydride and a dihydric alcohol
Assignee: Armstrong World Industries Inc
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Filing: 1960-06-14
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Granted: 1963-01-01
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Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Nicholas C Bolgiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PLASTICIZED RESINOUS COMPOSITION COMPRISING A POLYCARBONATE POSSESSING THE CARBONATE GROUP
Claim 2
Dependent Claim
11 words
A PLASTICIZED RESINOUS COMPOSITION COMPRISING A POLYCARBONATE POSSESSING THE CARBONATE GROUP
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |