US2886777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude displays
Assignee: Individual
•
Filing: 1955-04-27
•
Granted: 1959-05-12
•
Expires: 1975-04-27
Abstract
No abstract record available.
Inventors
- 👤 Hurvitz Hyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:06
CPC Classifications
H; H03; H03J; H03J1/00; H03J1/02; H03J1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1814399A
Cited
US2087652A
Cited
US2243702A
Cited
US2684450A
Cited
US2624857A
Cited
US2698915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |