US3030924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically and manually operable line indicator for copy holders
Assignee: Individual
•
Filing: 1960-03-10
•
Granted: 1962-04-24
•
Expires: 1980-03-10
Abstract
No abstract record available.
Inventors
- 👤 Friis-Hansen Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:37
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/15; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US624555A
Cited
US988700A
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US879016A
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US1006270A
Cited
US1245027A
Cited
US1393116A
Cited
US1768753A
Cited
US2494129A
Cited
US2906242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |