Patent US2648385A successfully refreshed from Google Patents.
US2648385A
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Floatingly mounted perforating apparatus
Assignee: AT&T Teletype Corp
•
Filing: 1949-01-04
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Granted: 1953-08-11
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Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Boo Jerome L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:20
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/16; H04L17/20; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4728; Y10T83/4757; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2273265A
Cited
US223866A
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US589570A
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US85661A
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US652754A
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US800732A
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US1048560A
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US1254470A
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US1721486A
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US1938318A
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US1994913A
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US2084869A
Cited
US2333024A
Cited
US2442567A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |