US2909654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uninterrupted amplification key stimulated emission of radiation from a substance having three energy states
Assignee: Individual
•
Filing: 1956-10-15
•
Granted: 1959-10-20
•
Expires: 1976-10-15
Abstract
No abstract record available.
Inventors
- 👤 Bloembergen Nicolaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:02
CPC Classifications
H; H03; H03H; H03H2/00; H03H2/005; H03H2/006; H01; H01S; H01S1/00; H01S1/02; H03F; H03F3/00; H03F3/60; H03F3/608
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2445895A
Cited
US2762872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |