US3087996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hisashi kaneko
Assignee: —
•
Filing: —
•
Granted: 1963-04-30
•
Expires: 1980-04-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
H; H04; H04L; H04L7/00; H04L7/04; H04L7/041; H04L7/042; H04J; H04J3/00; H04J3/02; H04J3/06; H04J3/0602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2949503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |