US3201369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat stable polycarbonates containing metal salts of oxyacids of phosphorus
Assignee: Honeywell International Inc
•
Filing: 1961-05-29
•
Granted: 1965-08-17
•
Expires: 1981-05-29
Abstract
No abstract record available.
Inventors
- 👤 Richard G Dell
- 👤 Richard A Meinzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:09
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A BISPHENOL POLYCARGONATE RESIN COMPOSITION COMPRISING (A) A POLYCARBONATE RESIN OF THE FORMULA
Claim 2
Dependent Claim
13 words
A BISPHENOL POLYCARGONATE RESIN COMPOSITION COMPRISING (A) A POLYCARBONATE RESIN OF THE FORMULA
References Cited (Backward Citations)
US2865883A
Cited
US2964797A
Cited
US2924586A
Cited
US2967774A
Cited
US2984647A
Cited
US3108091A
Cited
US3079366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |