Patent US2780958A successfully refreshed from Google Patents.
US2780958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light modulator
Assignee: Goodyear Aircraft Corp
•
Filing: 1950-12-16
•
Granted: 1957-02-12
•
Expires: 1970-12-16
Abstract
No abstract record available.
Inventors
- 👤 Carl A Wiley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/03; G02F1/0305; G02F1/0322
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1740673A
Cited
US2064289A
Cited
US2013559A
Cited
US2163530A
Cited
US2493200A
Cited
US2467325A
Cited
US2600962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |