Patent US2952839A successfully refreshed from Google Patents.
US2952839A
Expired / Lapsed
US
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Electrical signal storage device
Assignee: Pitney Bowes Inc
•
Filing: 1957-04-02
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Granted: 1960-09-13
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Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Adolfo A Capanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:05
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/401; G11C11/403; B; B07; B07C; B07C3/00; B07C3/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404307A
Cited
US2762016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |