US2938200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annunciator panel
Assignee: California Plasteck Inc
•
Filing: 1957-09-16
•
Granted: 1960-05-24
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 James N Dupree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:04
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1829648A
Cited
US2005863A
Cited
GB533681A
Cited
US2346831A
Cited
US2433917A
Cited
US2764751A
Cited
US2703398A
Cited
US2797407A
Cited
US2769974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |