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Patent US2948813A successfully refreshed from Google Patents.
US2948813A
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Tracking system
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1950-08-21
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Granted: 1960-08-09
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Expires: 1970-08-21
Abstract
No abstract record available.
Inventors
- 👤 William E Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:01
CPC Classifications
F; F41; F41G; F41G7/00; F41G7/20; F41G7/22; F41G7/2253; F41G7/2213; F41G7/2273; F41G7/2293; G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/785; G01S3/786; Y; Y10; Y10T; Y10T74/00; Y10T74/12; Y10T74/1229; Y10T74/1232; Y10T74/1254; Y10T74/1261; Y10T74/1264
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1388932A
Cited
US2451917A
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US2421085A
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US2439294A
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US2534824A
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US2512598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |