US2617094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object location system
Assignee: AT&T Inc
•
Filing: 1945-03-30
•
Granted: 1952-11-04
•
Expires: 1965-03-30
Abstract
No abstract record available.
Inventors
- 👤 William C Tinus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:26
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2430038A
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US2479569A
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US2524837A
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US2491450A
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US2406751A
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US2430283A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |