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Patent US3429074A successfully refreshed from Google Patents.
US3429074A
Expired / Lapsed
US
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Automatic gate device
Assignee: Individual
•
Filing: 1967-08-28
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Granted: 1969-02-25
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Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert D Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:29
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02; E05; E05F; E05F15/00; E05F15/50; E05F15/53; E05Y; E05Y2900/00; E05Y2900/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |