US3435447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light deflecting mechanisms
Assignee: International Business Machines Corp
•
Filing: 1965-03-01
•
Granted: 1969-03-25
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 William L Duda
- 👤 Harold Fleisher
- 👤 Werner W Kulcke
- 👤 Erhard Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
H; H03; H03M; H03M1/00; G; G02; G02F; G02F1/00; G02F1/29; G02F1/31; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE26170E
Cited
US3290619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |