US2831410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for type setting
Assignee: Individual
•
Filing: 1950-10-09
•
Granted: 1958-04-22
•
Expires: 1970-10-09
Abstract
No abstract record available.
Inventors
- 👤 Lester M Walden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:41
CPC Classifications
B; B41; B41B; B41B27/00; B41B27/02; B41B17/00; B41B17/04; B41B17/06
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |