US2879669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertical sensing device
Assignee: Ambac International Corp
•
Filing: 1954-07-22
•
Granted: 1959-03-31
•
Expires: 1974-07-22
Abstract
No abstract record available.
Inventors
- 👤 Statsinger Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:03
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/02; G01C19/44; G01C19/46; G01C19/54; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1261; Y10T74/1275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1083370A
Cited
US2293092A
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US2419063A
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GB615734A
Cited
FR912182A
Cited
US2501885A
Cited
US2620669A
Cited
US2608867A
Cited
US2752792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |