Patent US2787727A successfully refreshed from Google Patents.
US2787727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical system
Assignee: General Electric Co
•
Filing: 1951-11-06
•
Granted: 1957-04-02
•
Expires: 1971-11-06
Abstract
No abstract record available.
Inventors
- 👤 Douglas R Maure
- 👤 Paul C Gardiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/10; H03K4/12; H03K4/14; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2265290A
Cited
US2375709A
Cited
US2300999A
Cited
US2412210A
Cited
US2621306A
Cited
US2431766A
Cited
US2414486A
Cited
US2503060A
Cited
US2464393A
Cited
US2465364A
Cited
US2596167A
Cited
US2562188A
Cited
US2461871A
Cited
US2569164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |