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US2789282A
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Automatic approach alarm
Assignee: VINCENT Manufacturing CORP
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Filing: 1954-05-17
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Granted: 1957-04-16
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Daniel R Winters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:21
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; B; B66; B66C; B66C15/00; B66C15/06; B66C15/065; B66C23/00; B66C23/62; B66C23/72; B66C23/78; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0378
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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |