US2972136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data handling system and magnetic switching network therefor
Assignee: Individual
•
Filing: 1955-10-10
•
Granted: 1961-02-14
•
Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Gieseler Luther Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:37
CPC Classifications
H; H03; H03M; H03M1/00; G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/225; G01L1/2256; H03M1/02
Claims Analysis
Total Claims: 0
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US2809303A
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US2918664A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |