US3005121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam intensity control system
Assignee: National Co Inc
•
Filing: 1959-09-14
•
Granted: 1961-10-17
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Expires: 1979-09-14
Abstract
No abstract record available.
Inventors
- 👤 George James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:46
CPC Classifications
H; H05; H05H; H05H3/00; H05H3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2457530A
Cited
US2715186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |