US2919349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shadow thermoprinting
Assignee: 3M Co
•
Filing: 1956-04-02
•
Granted: 1959-12-29
•
Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Carl A Kuhrmeyer
- 👤 Donal G Kimble
- 👤 Carl S Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:24
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306
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) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |