US3057792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving the imprintability of synthetic material
Assignee: Siemens Schuckertwerke AG
•
Filing: 1958-12-22
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Granted: 1962-10-09
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Frohlich Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:16
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
THE METHOD OF IMPROVING THE DYE-HOLDING ABILITY OF SYNTHETIC PLASTICS, WHICH COMPRISES PLACING THE SYNTHETIC MATERIAL IN A VACUUM AND SUBJECTING ITS RANGE TO THE PLASMA OF AN ELECTRIC LOW-PRESSURE GLOW DISCHARGE OF A FEW HUNDRED VOLTS.
Claim 2
Independent Claim
37 words
THE METHOD OF IMPROVING THE DYE-HOLDING ABILITY OF SYNTHETIC PLASTICS, WHICH COMPRISES PLACING THE SYNTHETIC MATERIAL IN A VACUUM AND SUBJECTING ITS RANGE TO THE PLASMA OF AN ELECTRIC LOW-PRESSURE GLOW DISCHARGE OF A FEW HUNDRED VOLTS.
References Cited (Backward Citations)
US2468173A
Cited
US1888419A
Cited
US2454757A
Cited
US2551035A
Cited
US2837654A
Cited
US2881470A
Cited
US2864755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |