US2866186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical indicator for annunciators
Assignee: Individual
•
Filing: 1954-12-27
•
Granted: 1958-12-23
•
Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 George K C Hardesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:52
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/02; G08B5/22; G08B5/32; H; H01; H01H; H01H9/00; H01H9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US841307A
Cited
US1464894A
Cited
US2056715A
Cited
US2410636A
Cited
DE873961C
Cited
US2592329A
Cited
US2490873A
Cited
US2644939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |