US2530996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential actuating mechanism
Assignee: Pitney Bowes Inc
•
Filing: 1948-04-01
•
Granted: 1950-11-21
•
Expires: 1968-04-01
Abstract
No abstract record available.
Inventors
- 👤 Alva G Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:14
CPC Classifications
G; G06; G06C; G06C23/00; G06C23/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB464462A
Cited
US290299A
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US618158A
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US1454275A
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US1862901A
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US2206724A
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US2248257A
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US2370919A
Cited
US773632A
Cited
US2163277A
Cited
US2488143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |