Patent US3485903A successfully refreshed from Google Patents.
US3485903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a spongeous transfer medium
Assignee: International Business Machines Corp
•
Filing: 1967-05-03
•
Granted: 1969-12-23
•
Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Hugh T Findlay
- 👤 William H Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:18
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; B41J; B41J31/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1673958A
Cited
US3055297A
Cited
US3117018A
Cited
US3413184A
Cited
US3287153A
Cited
US3303046A
Cited
US3306867A
Cited
US3314814A
Cited
US3413183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |