Patent US3062780A successfully refreshed from Google Patents.
US3062780A
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High molecular weight linear polycarbonates
Assignee: Bayer AG
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Filing: 1957-11-20
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Granted: 1962-11-06
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Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 Rinke Heinrich
- 👤 Lehmann Wolfgang
- 👤 Schnell Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:49
CPC Classifications
C; C08; C08G; C08G64/00; C08G64/16; C08G64/1608; C08G64/1625; C08G64/1633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
HIGH MOLECULAR WEIGHT, FIBER AND FILM-FORMING THERMOPLASTIC, LINEAR POLYCARBONATES CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE FORMULA
Claim 2
Dependent Claim
17 words
HIGH MOLECULAR WEIGHT, FIBER AND FILM-FORMING THERMOPLASTIC, LINEAR POLYCARBONATES CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE FORMULA
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |