US2994864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1959-07-22
•
Granted: 1961-08-01
•
Expires: 1979-07-22
Abstract
No abstract record available.
Inventors
- 👤 Roland L Van Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:37
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/74; H03M1/742; H03M1/747
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2704842A
Cited
US2870436A
Cited
US2924711A
Cited
US2907021A
Cited
US2894250A
Cited
US2907991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |