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US2890443A
Expired / Lapsed
US
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Horn blowing device
Assignee: Individual
•
Filing: 1958-02-10
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Granted: 1959-06-09
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Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 William M Folberth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:25
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/50; B60Q1/54; B60Q5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733310A
Cited
US2734103A
Cited
US2530461A
Cited
US2751575A
Cited
US2802204A
Cited
US2811597A
Cited
US2831183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |