US2648385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floatingly mounted perforating apparatus
Assignee: AT&T Teletype Corp
•
Filing: 1949-01-04
•
Granted: 1953-08-11
•
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 16:40
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2273265A
Cited
US223866A
Cited
US589570A
Cited
US85661A
Cited
US652754A
Cited
US800732A
Cited
US1048560A
Cited
US1254470A
Cited
US1721486A
Cited
US1938318A
Cited
US1994913A
Cited
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 |