US2972742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic position-reporting system
Assignee: International Business Machines Corp
•
Filing: 1956-09-12
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Granted: 1961-02-21
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Expires: 1976-09-12
Abstract
No abstract record available.
Inventors
- 👤 Dan C Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:15
CPC Classifications
G; G01; G01S; G01S5/00; G01S5/02; G01S5/06; G01S3/00; G01S3/02; G01S3/023; G01S5/0009; G01S5/0018; G01S5/0036; G01S5/0205; G01S5/021
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) | 1964-02-21 | 1964-08-22 | 1965-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-21 | 1968-08-22 | 1969-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-21 | 1972-08-22 | 1973-02-21 | $7700.00 | Window Closed / Lapsed |