US3376509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central station for a multiple remoteinterrogated information system, with busy signalling
Assignee: HAROLD E LEVITT
•
Filing: 1966-06-29
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Granted: 1968-04-02
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Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Frederick P Willcox
- 👤 Newland F Smith
- 👤 Harold E Levitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:25
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/16; G07; G07C; G07C9/00; G07C9/30; H; H04; H04L; H04L1/00; H04L1/0078; H04L1/0083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |