US3474728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing blocks of solid plastic material
Assignee: Hoechst AG
•
Filing: 1967-10-05
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Granted: 1969-10-28
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Expires: 1987-10-05
Abstract
No abstract record available.
Inventors
- 👤 Hans-Joachim Lenz
- 👤 Diethard Benkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:21
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; B; B41; B41N; B41N1/00; B41N1/12; C08J2359/00; C08J2359/02
Claims Analysis
Total Claims: 0
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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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |