US3437632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polycarbonate resins containing glass fibers sized with polycarbonates
Assignee: Bayer AG
•
Filing: 1964-11-25
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Granted: 1969-04-08
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Hechelhammer
- 👤 Hugo Streib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:05
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/28; C03C25/285; C03C25/32; C03C25/325; C08G; C08G64/00; C08G64/04; C08K9/00; C08K9/08; C08L; C08L69/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA697698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |