US2834095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making drum type sequence switches
Assignee: Unisys Corp
•
Filing: 1956-10-16
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Granted: 1958-05-13
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Expires: 1976-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert M Lazzopina
- 👤 Onofrio Joseph V D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:49
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/02; H01H43/04; Y; Y10; Y10S; Y10S200/00; Y10S200/07; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011; Y10T29/49105; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49995; Y10T29/49996
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2696658A
Cited
US2696570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |