US2954291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing a spirit duplicating master
Assignee: Xerox Corp
•
Filing: 1957-01-04
•
Granted: 1960-09-27
•
Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harold E Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:46
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/30; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2067435A
Cited
US2305799A
Cited
US2297691A
Cited
US2519321A
Cited
US2528496A
Cited
US2598732A
Cited
US2663636A
Cited
US2676887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |