US2966992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic holder
Assignee: AMERICAN DISPLAY Co
•
Filing: 1957-12-23
•
Granted: 1961-01-03
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jack E Dunkelberger
- 👤 Byron C Dunkelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
B; B25; B25H; B25H3/00; B25H3/04; Y; Y10; Y10S; Y10S211/00; Y10S211/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733113A
Cited
US2414653A
Cited
US2448692A
Cited
US2572514A
Cited
US2580099A
Cited
US2565625A
Cited
US2657342A
Cited
US2641793A
Cited
US2869047A
Cited
US2808281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |