US2905828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light tracking device
Assignee: Kollsman Instrument Corp
•
Filing: 1952-11-20
•
Granted: 1959-09-22
•
Expires: 1972-11-20
Abstract
No abstract record available.
Inventors
- 👤 James B O'maley
- 👤 John W Barnes
- 👤 Paul D Hansell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:37
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB540233A
Cited
US2424193A
Cited
US2246771A
Cited
US2354508A
Cited
US2516356A
Cited
US2484914A
Cited
US2604528A
Cited
US2513367A
Cited
US2678581A
Cited
US2647436A
Cited
US2638811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |