US3402364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical maser with roof system reflector under 90deg.
Assignee: US Philips Corp
•
Filing: 1964-03-30
•
Granted: 1968-09-17
•
Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lang Hendrik De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:35
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/06; H01S3/0602; H01S3/0606; H01S3/08059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE608711A
Cited
US3308395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |