Patent US3123769A successfully refreshed from Google Patents.
US3123769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:24
CPC Classifications
H; H03; H03D; H03D3/00; H03D3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA472643A
Cited
US2304134A
Cited
US2434914A
Cited
GB583794A
Cited
US2481659A
Cited
US2558758A
Cited
US2480128A
Cited
US2522371A
Cited
US2566876A
Cited
US2585532A
Cited
US2580803A
Cited
GB706298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |