US2426935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hectograph blanket
Assignee: Ditto Inc
•
Filing: 1945-10-31
•
Granted: 1947-09-02
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Kramsky Irwin
- 👤 Melville J Holik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:40
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/06; B41M5/08; Y; Y10; Y10S; Y10S428/00; Y10S428/908; Y10S428/909; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768; Y10T428/31772; Y10T428/31775; Y10T428/31844; Y10T428/31848; Y10T428/31851
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1982018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |