US3421833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyed and printed metal modified polypropylene and processes therefor
Assignee: Bayer AG
•
Filing: 1964-04-30
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Granted: 1969-01-14
•
Expires: 1984-04-30
Abstract
No abstract record available.
Inventors
- 👤 Hermann Wunderlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/14; D06P1/145; C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/50; C09; C09B; C09B47/00; C09B47/04; C09B47/06; C09B47/073; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2683643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |